Concise dictionary of American biography
Charles Scribner's Sons, 1964
 Buku Referensi
Concise Dictionary of American biography
editor Joseph G. E.Hopkins
Charles Scribner's Sons, 1964
 Buku Referensi
Adams, James Truslow
Dictionary of American history
1946
 Buku Referensi
Roth, Leland M
A Concise history of american architecture/Leland M. Roth
Harper & Row Publishers, 1979
 Buku Teks
Brinkley, Alan
The unfinished nation: a concise history of the American people
McGraw-Hill, 1997
 Buku Referensi