Bukowski, Douglas
American history : a concise documents collection Volume 2 : Since 1865
Bedford/St. Martin's, 1999
 Buku Teks
A more perfect union: documents in U.S. history to 1877
[compiled by] Paul F. Boller, Jr. and Ronald Story
Houghton Mifflin , 1988
 Buku Teks
Concise dictionary of American biography
Charles Scribner's Sons, 1964
 Buku Referensi
Concise dictionary of American history
editor Thomas C. Cochran, Wayne Andrew
Charles Scribner's Sons , 1962
 Buku Referensi
Concise Dictionary of American biography
editor Joseph G. E.Hopkins
Charles Scribner's Sons, 1964
 Buku Referensi