(From list compiled by Major Paul M. Chamberlain, of Chicago in 1915.)

• Abbott—George E. H. Abbott, Groton, Massachusetts.
• Addington—S. Addington, Esq., purchaser at Bernal sale.
• Ashmolean—Ashmolean Museum, Oxford, England.
• Augsburg—Maxmillian Museum, Augsburg, Germany.
• Baker—Edwin P. Baker, referred to by Britten.
• Baxter—James Phinney Baxter, Portland, Maine.
• Blois—Musee de la ville, Blois, France.
• Boston—Museum of Fine Arts, Boston, Massachusetts.
• Bourne—T. W. Bourne, referred to by Britten.
• British—British Museum, London, England.
• Bulley—Edward H. Bulley, referred to by Britten.
• Burkhardt—M. Albert Burkhardt, Basle, Switzerland.
• Chamberlain—Paul M. Chamberlain, Chicago, Illinois.
• Chesam—Lord Chesam, referred to by Britten.
• Cluny—Musee de Cluny, Paris, France.
• Clarke—A. E. Clarke, London, England.
• Cockey—Edward C. Cockey, New York City.
• Cointre—La Famille Cointre, of Poitiers, France.
• Copenhagen—Horological Museum, Copenhagen, Denmark.
• Cook—E. E. Cook, Walton-on-Thames, England.
• Czar—Imperial collection, Hermitage Gallery, Petrograd, Russia (1915).
• Cumberland—Duke of Cumberland, England.
• Debruge—Debruge collection, catalogue published in 1849, referred to by M. E. Deville in Les Horlogers Blesois.
• Dennison—Franklin Dennison collection, Birmingham, England.
• Devotion—The Edward Devotion House, Brookline, Massachusetts.
• Dickson—R. Eden Dickson, London, England.
• Ditisheim—Henri Ditisheim, Chaux-de-Fonds, Switzerland.
• Dresden—Green Vaulted Chambers, Dresden, Germany.
• Duplessis—Family of Duplessis of Blois, referred to in Les Horlogers Blesois.
• Dover—Dover Museum, Dover, England.
• Dunwoody—Dr. W. J. Dunwoody, mentioned by Britten.
• Estreicher—Dr. Tad. Estreicher, Fribourg, Switzerland.
• Eschenbach—Baroness Marie von Ebner-Eschenbach, Vienna, Austria-Hungary.
• Fawkes—J. H. Fawkes of Farnlet Hall, England.
• Fellows—Collection of Sir Charles Fellows, of Westbourn, Isle of Wight, bequeathed by widow to British Museum.
• Fitzwilliam—Fitzwilliam Museum, Cambridge, England.
• Fleisher—Collection of Moyer Fleisher, exhibited in the Pennsylvania Museum,
• Memorial Hall, Philadelphia, Pennsylvania.
• Foulc—M. Foulc, Paris, France.
• Franck—B. Bernard Franck, Paris, France.
• Freeman—Charles Freeman, referred to by Britten.
• Froidevaux—M. Froidevaux, Blois, France.
• Garnier—M. Paul Garnier, Paris, France.
• Gelis—M. Edouard Gelis, Paris, France.
• Geyer—H. F. Geyer, mentioned by Britten.
• Georgi—M. Georgi, Paris, France.
• Glyn—George Carr Glyn, referred to by Britten.
• Gotha—Museum of Gotha, Germany.
• Greene—T. Whitcomb Greene, referred to by Britten.
• Guildhall—Guildhall Museum, London, England.
• Hartshorne—Albert Hartshorne, referred to by Britten.
• Hearn—George Hearn collection, presented by widow to Metropolitan Museum of Art, New York City.
• Heckscher—Martin Heckscher collection in Vienna, Austria-Hungary.
• Heinz—Collection of Henry J. Heinz, exhibited in the Carnegie Museum, Pittsburg.
• Hodgkins—Collection of J. E. Hodgkins, London, England.
• Humphreys—Miss M. Humphreys, mentioned in Britten.
• Jenkins—Collection of Jefferson D. Jenkins, Decatur, Illinois.
• King—C. King, Newport, Monmouthshire, England.
• Kensington—South Kensington Museum, London, England.
• Kirner—B. A. Kirner, Chicago, Illinois.
• Lambert—Messrs. Lambert, referred to by Britten.
• Lazerus—Collection of Moses Lazerus, Philadelphia, bequeathed to Pennsylvania Museum, Philadelphia, Pennsylvania.
• Lambiley—Compte de Lambiley, France.
• Laurance—E. A. Laurance, mentioned by Britten.
• Lebenheim—Mentioned in Morgan catalogue.
• Lecointre—Family of Lecointre, Poitiers, France.
• Leicester—Leicester Museum, Leicester, England.
• Leroux—M. E. Leroux, Paris, France.
• Liljigren—L. O. Liljigren, Chicago, Illinois.
• Londesboro—Lord Londesboro, London, England.
• Louvre—Musee de Louvre, Paris, France.
• Marfels—Collection of Carl Marfels, Berlin, Germany.
• Massey—Edwards Massey, London, England.
• Meldrum—Robert Meldrum, referred to by Britten.
• Metropolitan—Metropolitan Museum of Art, New York City.
• Mirabaud—M. G. Mirabaud, Paris, France.
• Moore—Bloomfield Moore collection in Pennsylvania Museum, Philadelphia.
• Morgan—J. Pierpont Morgan collection at Metropolitan Museum of Art, New York City.
• O. Morgan—Octavius Morgan collection in British Museum.
• Moray—Lord Moray, London, England.
• Moss—Rev. J. J. Moss, purchaser at Bernal sale, London, England, 1855.
• Munich—National Bavarian Museum at Munich, Germany.
• Nelthropp—Collection presented by Rev. H. L. Nelthropp to the Worshipful Company of Clockmakers of the City of London and exhibited at Guild Hall Museum.
• Newington—Newington Free Library, Newington, England.
• Olivier—M. Olivier, Paris, France.
• Parr—Edward Parr, London, England.
• Partridge—R. W. Partridge, London, England.
• Ponsonby—Hon. Gerald Ponsonby, referred to by Britten.
• Proctor—Frederick Towne Proctor, Utica, New York.
• Proctor, T. R.—Thomas Redfield Proctor, Utica, New York.
• Purnell—J. B. Purnell, purchaser at Bernal sale in 1855.
• Ranken—William Ranken, London, England.
• Reeves—R. F. Reeves, St. Louis, Missouri.
• Renouard—Family of Renouard, Belois, France.
• Roberts—Evan Roberts, London, England.
• Robertson—J. Drummond Robertson, London, England.
• Roblot—Ch. Roblot, Paris—Passy, France.
• Rothchild—Baroness Alphonse de Rothchild collection.
• Rosenheim—Max Rosenheim, referred to by Britten.
• Roux—Edward Roux, mentioned by Britten.
• Salting—Collection now in the South Kensington Museum.
• Saussure—M. Th. de Saussure, mentioned by Britten.
• Sauve—M. Sauve, Belois, France.
• Schlichting—Baron von Schlichting, Petrograd, Russia, (1915).
• Shapland—Charles Shapland, London, England.
• Shaw—Morgan Shaw, London, England.
• Sidebottom—Collection of Mrs. H. Sidebottom, in South Kensington Museum.
• Sivan—M. Charles Sivan, Paris, France.
• Smythies—Major R. H. Raymond Smythies, London, England.
• Soane—Soane Museum, London, England.
• Stamford—Stamford Institution, England.
• Stroehlin—Stroehlin collection, referred to in J. P. Morgan catalogue.
• Sudell—Edward Sudell, mentioned by Britten.
• Sutton—Rev. A. F. Sutton, England.
• Thompson—Mrs. G. F. Thompson, Ottawa, Canada.
• Torphicon—Lord Torphicon, referred to by Britten.
• Turrettini—Turrettini collection referred to by Dr. Williamson in Morgan catalogue.
• Vautier—M. L. Vautier, Belois, France.
• Vendome—Calvaire de Vendome, France.
• Vienna—Imperial Treasury, Vienna, Austria-Hungary.
• Wallace—Lord Wallace collection, bequeathed by his widow to the British Museum.
• Wehrle—Eugene Wehrle, Brussels, Belgium.
• Wheeler, H. L.—Horace L. Wheeler, Boston, Massachusetts.
• Wheeler—Collection of Willard H. Wheeler, Brooklyn, N. Y., exhibited in the Brooklyn Museum, New York City.