| National Library of Australia | Canberra | Australia |
| Osterreichisches Staatsarchiv - Allgemeines Verwaltungsarchiv | Vienna | Austria |
| Oesterreichische Nationalbibliothek | Vienna | Austria |
| Musée royal de Mariemont | Morlanwelz | Belgium |
| Archives de l'État | Liège | Belgium |
| Private collection (Collection of Baron de Rennette | Braine-le-Château | Belgium |
| Archives de l'État | Brussels | Belgium |
| KBR | Brussels | Belgium |
| Leuven University Library | Leuven | Belgium |
| Bibliotheek Tweebronnen | Leuven | Belgium |
| Universiteitsbibliotheek Gent | Ghent | Belgium |
| Bibliothèque du séminaire épiscopal de Gand | Ghent | Belgium |
| Museum Plantin-Moretus | Antwerp | Belgium |
| Nederduitse Provincie der Jezuïeten | Antwerp | Brussels |
| Moravská zemská knihovna v Brně | Brno | Czech Republic |
| Muzeum Komenského v Přerově | Přerov | Czech Republic |
| Zemský archiv v Opavě | Olomouc | Czech Republic |
| Státní oblastní archív v Zámrsku | Zámrsk | Czech Republic |
| Oddělení pro studium a edici díla J.A. Komenského | Praha | Czech Republic |
| Strahovská knihovna | Prague | Czech Republic |
| Národní knihovna | Praha | Czech Republic |
| Knihovna Národního muzea | Praha | Czech Republic |
| Kongelige Bibliotek | Copenhagen | Denmark |
| University of Copenhagen | Copenhagen | Denmark |
| Statens Arkiver | Copenhagen | Denmark |
| The Linnean Society of London | London | England, United Kingdom |
| Spalding Gentlemen's Society | Spalding | England, United Kingdom |
| Royal Institution of Cornwall | Truro | England, United Kingdom |
| Plymouth and West Devon Record Office | Plymouth | England, United Kingdom |
| Portsmouth History Centre | Portsmouth | England, United Kingdom |
| Kingston Lacy | Wimborne Minster | England, United Kingdom |
| Arundel Castle Archives | Arundel, West Sussex | England, United Kingdom |
| Southampton Archives Services | Southampton | England, United Kingdom |
| Petworth House | Petworth | England, United Kingdom |
| Hampshire Record Office | Winchester, Hampshire | England, United Kingdom |
| Longleat House Library and Archives | Wiltshire | England, United Kingdom |
| The Vyne | Sherborne St John | England, United Kingdom |
| Wiltshire Archaeological and Natural History Society Library | Devizes, Wiltshire | England, United Kingdom |
| Bowood House | Wiltshire | England, United Kingdom |
| Royal Greenwich Observatory Library | London | England, United Kingdom |
| National Maritime Museum | London | England, United Kingdom |
| Eton College Library | Windsor | England, United Kingdom |
| Lambeth Palace Library | London | England, United Kingdom |
| Natural History Museum | London | England, United Kingdom |
| Science Museum | London | England, United Kingdom |
| Parliamentary Archives | London | England, United Kingdom |
| Royal Astronomical Society | London | England, United Kingdom |
| Society of Antiquaries of London Library | London | England, United Kingdom |
| College of Arms | London | England, United Kingdom |
| Inner Temple Library | London | England, United Kingdom |
| Guildhall Library | London | England, United Kingdom |
| Royal Society Library | London | England, United Kingdom |
| Lincoln's Inn Library | London | England, United Kingdom |
| Private collection (Collection of M. Breslauer) | London | England, United Kingdom |
| Gray's Inn Library | London | England, United Kingdom |
| Paul Mellon Centre for Studies in British Art | London | England, United Kingdom |
| Senate House Library | London | England, United Kingdom |
| Dr Williams's Library | London | England, United Kingdom |
| University College London Library | London | England, United Kingdom |
| The Huguenot Library | London | England, United Kingdom |
| Wellcome Library | London | England, United Kingdom |
| Society of Friends | London | England, United Kingdom |
| Shirburn Castle | Shirburn, Oxfordshire | England, United Kingdom |
| Christ Church College Library | Oxford | England, United Kingdom |
| All Souls College Library | Oxford | England, United Kingdom |
| Queen's College Library | Oxford | England, United Kingdom |
| Bodleian Library | Oxford | England, United Kingdom |
| Oxford University Archives | Oxford | England, United Kingdom |
| Museum of the History of Science | Oxford | England, United Kingdom |
| New College Library | Oxford | England, United Kingdom |
| Worcester College Library | Oxford | England, United Kingdom |
| Ashmolean Museum | Oxford | England, United Kingdom |
| Hatfield House Archives | Hatfield, Hertfordshire | England, United Kingdom |
| Fitzwilliam Museum (Department of Manuscripts and Printed books) | Cambridge | England, United Kingdom |
| Downing College Library | Cambridge | England, United Kingdom |
| Queens' College | Cambridge | England, United Kingdom |
| Pembroke College | Cambridge | England, United Kingdom |
| Parker Library | Cambridge | England, United Kingdom |
| Emmanuel College Library | Cambridge | England, United Kingdom |
| Cambridge University Library | Cambridge | England, United Kingdom |
| Trinity College Library | Cambridge | England, United Kingdom |
| Sidney Sussex College | Cambridge | England, United Kingdom |
| Pepys Library | Cambridge | England, United Kingdom |
| Northamptonshire Record Office | Northampton | England, United Kingdom |
| Hartlebury Castle | Hartlebury | England, United Kingdom |
| Wisbech & Fenland Museum | Wisbech | England, United Kingdom |
| Litchfield Cathedral Library | Litchfield | England, United Kingdom |
| Belvoir Castle | Grantham | England, United Kingdom |
| Nottingham University Library | Nottingham | England, United Kingdom |
| Keele University Library | Keele | England, United Kingdom |
| Cheshire Record Office | Chester | England, United Kingdom |
| Chatsworth House Library | Bakewell, Derbyshire | England, United Kingdom |
| Sheffield City Archives | Sheffield | England, United Kingdom |
| Sheffield University Library | Sheffield | England, United Kingdom |
| The University of Manchester Library | Manchester | England, United Kingdom |
| Chetham's Library | Manchester | England, United Kingdom |
| West Yorkshire Archives (Kirklees) | Kirklees | England, United Kingdom |
| West Yorkshire Archives (Wakefield) | Wakefield | England, United Kingdom |
| West Yorkshire Archives (Calderdale) | Calderdale | England, United Kingdom |
| West Yorkshire Archives (Leeds) | Leeds | England, United Kingdom |
| West Yorkshire Archives (Bradford) | Bradford | England, United Kingdom |
| Yorkshire Archaeological Society | Leeds | England, United Kingdom |
| Brotherton Library | Leeds | England, United Kingdom |
| Kendal Archive Centre | Kendal, Cumbria | England, United Kingdom |
| Durham Cathedral Library | Durham, County Durham | England, United Kingdom |
| Durham County Record Office | Durham | England, United Kingdom |
| Newcastle Literary and Philosophical Society | Newcastle upon Tyne | England, United Kingdom |
| Woodhorn Museum and Northumberland Archives | Ashington | England, United Kingdom |
| Alnwick Castle Collections and Archives | Alnwick, Northumberland | England, United Kingdom |
| Birmingham Archives | Birmingham | England, United Kingdom |
| British Library | London | England, United Kingdom |
| Corpus Christi College Library | Oxford | England, United Kingdom |
| East Sussex Record Office | Brighton | England, United Kingdom |
| Kent History and Library Centre | Maidstone, Kent | England, United Kingdom |
| London Metropolitan Archives | London | England, United Kingdom |
| The National Archives (UK) | Kew, Richmond, Surrey | England, United Kingdom |
| Warwickshire County Record Office | Warwick, Warwickshire | England, United Kingdom |
| Cornwall Record Office | Truro | England, United Kingdom |
| Somerset Heritage Centre | Taunton | England, United Kingdom |
| National Art Library | London | England, United Kingdom |
| Bank of England Archive | London | England, United Kingdom |
| King's College Library | Cambridge | England, United Kingdom |
| Christ's College Library | Cambridge | England, United Kingdom |
| Leicestershire | Leicester | England, United Kingdom |
| Lancashire Archives | Preston | England, United Kingdom |
| Cumbria Archive Centre | Carlisle | England, United Kingdom |
| Tartu University Library | Tartu | Estonia |
| Bibliothèque municipale de Saint-Girons | Saint-Girons | France |
| Private collection (Archives de la famille d'Amboix de Larbont) | Mas d'Azil, Ariège | France |
| Bibliothèque Méjanes | Aix-en-Provence | France |
| Bibliothèque de Toulouse | Toulouse | France |
| Les collections patrimoniales de la Bibliothèque Universitaire | Montpellier | France |
| Bibliothèque Inguimbertine | Carpentras | France |
| Bibliothèque municipale de Lyon | Lyon | France |
| Archives départementales du Puy-de-Dôme | Clermont-Ferrand | France |
| Archives municipales | La Rochelle | France |
| Bibliothèque municipale de Poitiers | Poitiers | France |
| Archives de la Vendée | La Roche-sur-Yon | France |
| Château de Collonges-lès-Bévy | Collonges-lès-Bévy, Bourgogne | France |
| Bibliothèque Municipale de Nantes | Nantes | France |
| Bibliothèque municipale de Besançon | Besançon | France |
| Bibliothèque municipale de Dijon | Dijon | France |
| Bibliothèque archives municipales | Tours | France |
| Archives départementales de la Haute-Marne | Choignes | France |
| Médiathèque du Grand Troyes | Troyes | France |
| Bibliothèque nationale et universitaire | Strasbourg | France |
| Bibliothèque de l'Observatoire de Paris | Paris | France |
| Bibliothèque de l’Assemblée nationale | Paris | France |
| Bibliothèque nationale de France | Paris | France |
| Bibliothèque Sainte-Geneviève | Paris | France |
| Bibliothèque interuniversitaire de la Sorbonne | Paris | France |
| Bibliothèque de l'Arsenal | Paris | France |
| Bibliothèque de la Société de l'Histoire du Protestantisme français | Paris | France |
| Bibliothèque de l'Institut de France | Paris | France |
| Archives de l'Académie des Sciences | Paris | France |
| Archives Nationales | Paris | France |
| Fondation Custodia | Paris | France |
| Archive du Ministère des Affaires Etrangères | Paris | France |
| Musée des Beaux-Arts de Caen | Caen | France |
| Médiathèque de Sedan | Sedan | France |
| Bibliothèque municipale de Lille | Lille | France |
| Bayerischen Staatsbibliothek | Munich | Germany |
| Universitätsbibliothek der Ludwig-Maximilians-Universität | Munich | Germany |
| Staats- und Stadtbibliothek Augsburg | Augsburg | Germany |
| Hauptstaatsarchiv Stuttgart | Stuttgart | Germany |
| Württembergische Landesbibliothek Stuttgart | Stuttgart | Germany |
| Hohenlohe-Zentralarchiv Neuenstein | Neuenstein | Germany |
| Pfälzische Landesbibliothek | Speyer | Germany |
| Universitätsbibliothek Heidelberg | Heidelberg | Germany |
| Germanisches Nationalmuseum | Nürnberg | Germany |
| Stadtbibliothek Nürnberg | Nürnberg | Germany |
| Staatsarchiv Nürnberg | Nürnberg | Germany |
| Universitätsbibliothek Erlangen-Nürnberg | Erlangen | Germany |
| Bayerisches Staatsarchiv Würzburg | Würzburg | Germany |
| Hessisches Staatsarchiv Darmstadt | Darmstadt | Germany |
| Staatsbibliothek Bamberg | Bamberg | Germany |
| Hessisches Hauptstaatsarchiv | Wiesbaden | Germany |
| Institut für Stadtgeschichte Frankfurt am Main | Frankfurt am Main | Germany |
| Universitätsbibliothek J.C. Senckenberg | Frankfurt am Main | Germany |
| Hochschul- und Landesbibliothek Fulda | Fulda | Germany |
| Universitätsbibliothek Giessen | Giessen | Germany |
| Pfarrarchiv Geisa | Geisa (Rhön) | Germany |
| Staatsarchiv Rudolstadt | Rudolstadt | Germany |
| Ratsschulbibliothek Zwickau | Zwickau | Germany |
| Universitätsbibliothek Bonn | Bonn | Germany |
| Hessisches Staatsarchiv Marburg | Marburg | Germany |
| Staatsbibliothek Marburg | Marburg | Germany |
| Thüringer Universitäts- und Landesbibliothek | Jena | Germany |
| Historisches Archiv der Stadt Köln | Cologne | Germany |
| Staatsarchiv Gotha | Gotha | Germany |
| Die Herzogin Anna Amalia Bibliothek | Weimar | Germany |
| Thüringisches Hauptstaatsarchiv Weimar | Weimar | Germany |
| Unitätsarchiv Herrnhut | Herrnhut | Germany |
| Sächsisches Staatsarchiv – Hauptstaatsarchiv Dresden | Dresden | Germany |
| Universitäts- und Landesbibliothek Düsseldorf | Düsseldorf | Germany |
| Archiv der Evangelischen Kirche im Rheinland | Düsseldorf | Germany |
| Universitätsbibliothek Kassel | Kassel | Germany |
| Universitätsbibliothek Leipzig | Leipzig | Germany |
| Deutsche Zentralarchiv (DZA) [former name] | Merseburg | Germany |
| Landesarchiv Sachsen-Anhalt | Merseburg | Germany |
| Bibliothek und Archiv der Franckeschen Stiftungen | Halle an der Saale | Germany |
| Leopoldina | Halle (Saale) | Germany |
| SUB Göttingen | Göttingen | Germany |
| Landesarchiv Sachsen-Anhalt | Dessau | Germany |
| Landesarchiv Sachsen-Anhalt | Werningerode | Germany |
| Universitäts- und Landesbibliothek Münster | Münster | Germany |
| Otto von Guericke Universität - Universitätsbibliothek | Magdeburg | Germany |
| Stadtarchiv Magdeburg | Magdeburg | Germany |
| Herzog August Bibliothek | Wolfenbüttel | Germany |
| Gottfried Wilhelm Leibniz Bibliothek | Hannover | Germany |
| Niedersächsisches Landesarchiv | Hannover | Germany |
| Geheimes Staatsarchiv Preußischer Kulturbesitz | Berlin | Germany |
| Bibliothek für Bildungsgeschichtliche Forschung | Berlin | Germany |
| Hugenottenbibliothek | Berlin | Germany |
| Staatsarchiv Bremen | Bremen | Germany |
| Staats- und Universitatsbibliothek Bremen | Bremen | Germany |
| Niedersächsisches Landesarchiv | Aurich | Germany |
| Bibliotheca Christianei | Hamburg | Germany |
| Staats- und Universitätsbibliothek Hamburg | Hamburg | Germany |
| Staatsarchiv Hamburg | Hamburg | Germany |
| Stadtbibliothek | Lübeck | Germany |
| Schloss Breitenburg | Schleswig-Holstein | Germany |
| Schleswig-Holsteinische Landesbibliothek | Kiel | Germany |
| Landesarchiv Schleswig-Holstein | Schleswig | Germany |
| Bayerisches Hauptstaatsarchiv | Munich | Germany |
| Forschungsbibliothek Gotha der Universität Erfurt | Gotha | Germany |
| Niedersächsisches Landesarchiv | Wolfenbüttel | Germany |
| Staatsbibliothek zu Berlin – Preußischer Kulturbesitz | Berlin | Germany |
| National Széchényi Library | Budapest | Hungary |
| Archívum Magyar Országos Levéltár | Budapest | Hungary |
| Magyar Országos Levéltár | Budapest | Hungary |
| Library and Information Centre of the Hungarian Academy of Sciences | Budapest | Hungary |
| National Library of Israel | Jerusalem | Israel |
| Archivio di Stato di Palermo | Palermo | Italy |
| Biblioteca Nazionale di Napoli | Naples | Italy |
| Biblioteca della Società Napoletana di Storia Patria | Naples | Italy |
| Biblioteca Statale Oratoriana dei Girolamini | Naples | Italy |
| Palazzo Colonna | Rome | Italy |
| Biblioteca Vallicelliana | Rome | Italy |
| Archivio della Pontificia Università Gregoriana | Rome | Italy |
| Archivum Romanum Societatis Iesu | Rome | Italy |
| Biblioteca Lancisiana | Rome | Italy |
| Biblioteca Capitolare di Viterbo | Viterbo | Italy |
| Biblioteca Comunale Augusta di Perugia | Perugia | Italy |
| Biblioteca Comunale degli Intronati | Siena | Italy |
| Biblioteca civica di Fossombrone | Fossombrone | Italy |
| Biblioteca Universitaria di Pisa | Pisa | Italy |
| Biblioteca Nazionale Centrale di Firenze | Florence | Italy |
| Archivio di Stato di Firenze | Florence | Italy |
| Biblioteca Medicea Laurenziana | Florence | Italy |
| Biblioteca Marucelliana | Florence | Italy |
| Archivio di Stato di Lucca | Lucca | Italy |
| Biblioteca Statale di Lucca | Lucca | Italy |
| Biblioteca e Museo Archeologico Oliveriani | Pesaro | Italy |
| Biblioteca Comunale "Aurelio Saffi" | Forlì | Italy |
| Biblioteca Comunale di Forlì | Forlì | Italy |
| Biblioteca comunale dell'Archiginnasio | Bologna | Italy |
| Biblioteca Universitaria di Bologna | Bologna | Italy |
| Biblioteca Estense Universitaria | Modena | Italy |
| Archivio storico della Tavola Valdese | Torre Pellice | Italy |
| Accademia dei Concordi | Rovigo | Italy |
| Biblioteca civica | Turin | Italy |
| Archivio dei Gonzaga di Castiglione delle Stiviere | Mantua | Italy |
| Biblioteca Nazionale Marciana | Venice | Italy |
| Biblioteca del Museo Correr | Venice | Italy |
| Biblioteca della Fondazione Querini Stampalia | Venice | Italy |
| Biblioteca Ambrosiana | Milan | Italy |
| Biblioteca Nazionale Braidense | Milan | Italy |
| Biblioteca Queriniana di Brescia | Brescia | Italy |
| Biblioteca Civica | Bassano dal Grappa | Italy |
| Biblioteca Guarneriana | San Daniele del Friuli | Italy |
| The National Archives of Latvia | Riga | Latvia |
| Lietuvos Mokslu Akademija | Vilnius | Lithuania |
| Zeeuwse Bibliotheek | Middelburg | Netherlands |
| Regionaal Archief Dordrecht | Dordrecht | Netherlands |
| Bibliotheek Rotterdam | Rotterdam | Netherlands |
| Stadsarchief Rotterdam | Rotterdam | Netherlands |
| Gelders Archief | Arnhem | Netherlands |
| Nationaal Archief | The Hague | Netherlands |
| Koninklijke Verzamelingen Den Haag | The Hague | Netherlands |
| Koninklijke Bibliotheek | The Hague | Netherlands |
| Museum voor Communicatie | The Hague | Netherlands |
| Bibliotheek van het Vredespaleis | The Hague | Netherlands |
| Het Utrechts Archief | Utrecht | Netherlands |
| Universiteitsbibliotheek Utrecht | Utrecht | Netherlands |
| Universiteitsbibliotheek Leiden | Leiden | Netherlands |
| Stadsarchief en Athenaeumbibliotheek | Deventer | Netherlands |
| Comenius Museum | Naarden | Netherlands |
| Vrije Universiteit Amsterdam Library | Amsterdam | Netherlands |
| Remonstrantse Kerk | Amsterdam | Netherlands |
| Stadsarchief Amsterdam | Amsterdam | Netherlands |
| Universiteit van Amsterdam | Amsterdam | Netherlands |
| Koninklijke Nederlandse Akademie van Wetenschappen | Amsterdam | Netherlands |
| Bibliotheca Philosopica Hermetica | Amsterdam | Netherlands |
| Teylers Stichting | Haarlem | Netherlands |
| Regionaal Archief Alkmaar | Alkmaar | Netherlands |
| Tresoar | Leeuwarden | Netherlands |
| Universiteitsbibliotheek Groningen | Groningen | Netherlands |
| Armagh Public Library | Armagh | Northern Ireland |
| Public Record Office of Northern Ireland | Belfast | Northern Ireland |
| Muzeum Narodowe | Kraków | Poland |
| Biblioteka Naukowa Polskiej Akademii Umiejętności i Polskiej Akademii Nauk w Krakowie | Kraków | Poland |
| Biblioteka Uniwersytecka | Wrocław | Poland |
| Wrocław University Library | Wrocław | Poland |
| Central Archives of Historical Records | Warsaw | Poland |
| Biblioteka Raczyńskich | Poznań | Poland |
| Biblioteka Kórnicka PAN | Poznań | Poland |
| Archiwum Państwowe w Poznaniu | Poznań | Poland |
| Archiwum Archidiecezji Warmińskiej | Olsztyn | Poland |
| Archiwum Państwowe w Gdańsku | Gdańsk | Poland |
| Biblioteka Gdańska Polskiej Akademii Nauk | Gdańsk | Poland |
| Biblioteka Jagiellońska | Kraków | Poland |
| Biblioteca Pública de Évora | Évora | Portugal |
| Biblioteca Nacional de Portugal | Lisbon | Portugal |
| Abadia de Montserrat | Montserrat | Portugal |
| Marsh's Library | Dublin | Republic of Ireland |
| National Library of Ireland | Dublin | Republic of Ireland |
| Royal College of Physicians of Ireland | Dublin | Republic of Ireland |
| Royal Irish Academy | Dublin | Republic of Ireland |
| Trinity College Dublin | Dublin | Republic of Ireland |
| Arhivele Statului Sibiu | Sibiu | Romania |
| Russian State Archive of Early Acts [RGADA] | Moscow | Russia |
| State Historical Museum | Moscow | Russia |
| Pulkovo Astronomical Observatory | Pulkovo, St Petersburg | Russia |
| Archive of the Russian Academy of Sciences | St Petersburg | Russia |
| National Library of Russia | St Petersburg | Russia |
| National Records of Scotland | Edinburgh | Scotland, United Kingdom |
| Blair Atholl Castle Archives | Blair Atholl | Scotland, United Kingdom |
| Glasgow University Library | Glasgow | Scotland, United Kingdom |
| Edinburgh University Library | Edinburgh | Scotland, United Kingdom |
| National Library of Scotland | Edinburgh | Scotland, United Kingdom |
| Edinburgh City Archives | Edinburgh | Scotland, United Kingdom |
| St Andrews University Library | St Andrews, Fife | Scotland, United Kingdom |
| Blair Castle Archive | Blair Atholl, Perthshire | Scotland, United Kingdom |
| University of Aberdeen Library | Aberdeen | Scotland, United Kingdom |
| Archivo del Sacromonte | Granada | Spain |
| Biblioteca de la Universidad de Sevilla | Seville | Spain |
| Biblioteca Capitular de Sevilla | Seville | Spain |
| Archivo Municipal de Sevilla | Seville | Spain |
| Fregenal de la Sierra City Council | Fregenal de la Sierra | Spain |
| Archivio Histórico Municipal de Valencia | Valencia | Spain |
| Biblioteca Fundación Bartolomé March Servera | Palma de Mallorca | Spain |
| Biblioteca Capitular de Toledo | Toledo | Spain |
| Real Academia de la Historia | Madrid | Spain |
| Biblioteca del Palacio Real | Madrid | Spain |
| Archivo de la Embajada Española ante al Santa Sede | Madrid | Spain |
| Biblioteca Zabálburu | Madrid | Spain |
| Biblioteca Nacional de España | Madrid | Spain |
| Instituto Valencia de Don Juan | Madrid | Spain |
| Archivo de la Casa de Alba | Madrid | Spain |
| Real Biblioteca del Monasterio del Escorial | San Lorenzo de El Escorial | Spain |
| Archivo de la Catedral de Tarragona | Tarragona | Spain |
| Biblioteca de la Universitat de Barcelona | Barcelona | Spain |
| Arxiu Nacional de Catalunya [ANC] | Barcelona | Spain |
| Archivo General de Simancas | Simancas | Spain |
| Archivo de la Catedral de Lleida | Lleida | Spain |
| Biblioteca del Seminario San Carlos | Zaragoza | Spain |
| Linköpings stadsbibliotek/Stiftsbiblioteket | Linköping | Sweden |
| Riksarkivet | Stockholm | Sweden |
| Kungliga Biblioteket | Stockholm | Sweden |
| Uppsala universitetsbibliotek | Uppsala | Sweden |
| Bibliothèque de Genève | Geneva | Switzerland |
| Institut d’histoire de la Réformation | Geneva | Switzerland |
| Archives d'Etat de Genève | Geneva | Switzerland |
| Private collection (Fondation Turrettini) | Geneva | Switzerland |
| Institut et Musée Voltaire | Geneva | Switzerland |
| Bodmer Library | Cologny, Geneva | Switzerland |
| Bibliothèque cantonale et universitaire | Lausanne | Switzerland |
| Burgerbibliothek Bern | Bern | Switzerland |
| Staatsarchiv | Bern | Switzerland |
| Archives de l’État de Neuchâtel | Neuchâtel | Switzerland |
| Zentralbibliothek Zürich | Zürich | Switzerland |
| Staatsarchiv des Kantons Zürich | Zürich | Switzerland |
| Kantonsbibliothek Vadiana St.Gallen | St Gallen | Switzerland |
| Staatsarchiv Basel-Stadt | Basel | Switzerland |
| Universitätsbibliothek Basel | Basel | Switzerland |
| Stadtbibliothek Schaffhausen | Schaffhausen | Switzerland |
| University of Chicago Library | Chicago | United States of America |
| Harry Ransom Center | Austin, TX | United States of America |
| Texas Christian University Library | Fort Worth, TX | United States of America |
| Private collection (Los Angeles | Los Angeles | United States of America |
| Hale Observatories Library | Pasadena, California | United States of America |
| Huntington Library | San Marino, CA | United States of America |
| UNC University Libraries | Chapel Hill, North Carolina | United States of America |
| Library of the University of Stanford | Stanford, CA | United States of America |
| University of Virginia Library | Charlottesville | United States of America |
| Library of Congress | Washington D.C. | United States of America |
| Folger Shakespeare Library | Washington, DC | United States of America |
| Smithsonian Institution | Washington D.C. | United States of America |
| Rosenbach Museum and Library | Philadelphia, PA | United States of America |
| Historical Society of Pennsylvania | Philadelphia, PA | United States of America |
| American Philosophical Society | Philadelphia, PA | United States of America |
| Haverford College Library | Haverford, PA | United States of America |
| Princeton University Library | Princeton, NJ | United States of America |
| Moravian Archives | Bethlehem, Pennsylvania | United States of America |
| The Morgan Library & Museum | New York, NY | United States of America |
| Columbia University | New York, NY | United States of America |
| Hispanic Society of America | New York, NY | United States of America |
| Harvey Cushing/John Hay Whitney Medical Library | New Haven, CT | United States of America |
| Lewis Walpole Library | Farmington, Connecticut | United States of America |
| Connecticut State Library | Hartford, CT | United States of America |
| Babson College | Wellesley | United States of America |
| Grace K. Babson Collection | Wellesley | United States of America |
| Massachusetts Historical Society | Boston, MA | United States of America |
| Houghton Library | Cambridge, MA | United States of America |
| Boston Public Library | Boston, MA | United States of America |
| University of Rochester Libraries | Rochester, NY | United States of America |
| Private collection (The Hyde Collection) | Somerville, NJ | United States of America |
| Maine Historical Society | Portland, ME | United States of America |
| Bowdoin College Library | Brunswick, Maine | United States of America |
| University Libraries | Minneapolis | United States of America |
| Beinecke Library | New Haven, CT | United States of America |
| New York Public Library | New York, NY | United States of America |
| Biblioteca Apostolica Vaticana | Vatican City | Vatican |
| Archivio Segreto Vaticano | Vatican City | Vatican |
| Glamorgan Archives | Cardiff | Wales, United Kingdom |
| Cardiff Central Library | Cardiff | Wales, United Kingdom |
| National Library of Wales | Aberystwyth | Wales, United Kingdom |
| Bangor University | Bangor | Wales, United Kingdom |