In the writing of this book I have gone largely to the sources, both published and unpublished, for my factual material. This has necessitated the cooperation of many individuals, libraries, and historical societies, and, in every case, such assistance has been freely and gladly given.
I am indebted to the following for permission to quote from manuscript letters, journals, diaries and other documents in their possession: New York Historical Society, The Historical Society of Pennsylvania, The New Jersey Historical Society, American Antiquarian Society, Yale University, Princeton University, Columbia University, Thomas F. Madigan, Inc., Dr. Waldo F. Leland, of Washington, D. C., and Mr. Edward Coykendall, of Kingston, N. Y. A further word of thanks must be tendered to the staffs of these institutions, and of those vast depositories, the New York Public Library and the Library of Congress, for unwearied and always cheerful aid.
For permission to quote from printed material, acknowledgments are gratefully given to Dodd, Mead and Company and Walter McCaleb, whose Aaron Burr Conspiracy is already a classic; to Professor Isaac Joslin Cox, whose researches have led to a better understanding of early Spanish-American relations; to the Buffalo Historical Society and Dr. Paul D. Evans, whose thesis, The Holland Land Company, based primarily on Dutch archives, is an interesting commentary on one of the first of American land booms; to Mr. Meade Minnegerode, co-author with Mr. Samuel Wandell of Aaron Burr, based upon much patient research; to Houghton Mifflin Company and Professor Samuel E. Morison, author of the definitive Life'and Letters of Harrison Gray Otis.
For permission to reproduce portraits and other illustrative material, I am indebted to the estate of Dr. John E. Stillwell, whose privately printed The History of the Burr Portraits is a veritable treasure-house of Burriana, to Gabriel Wells, of New York City, and to various art galleries and institutions.
In conclusion, I must publicly avow my private thanks to Professor Francis L. D. Goodrich and Mr. Thomas G. Schwartz, of the College of the City of New York, for the liberality with which they have permitted me unlimited access to the rich resources of their Library.
New York City January, 1937