Cummings, Paul
A dictionary of contemporary American artists
St. Martin`s Press, 1966
 Buku Referensi
Fielding, Mantle, 1865-1941
Dictionary of American painters sculptors and engravers
Apollo, 1983
 Buku Referensi
Brooks, Van Wyck, 1886-1963
dream of Arcadia; American writers and artists in Italy 1760-1915 / Van Wyck Brooks
E.P.Dutton, 1958
 Buku Teks SO
Who was who in America : a component volume of who`s who American history
The A.N. Marquis, 1966
 Buku Referensi
Langguth, A.J
Patriots : the men who started the American revolution
Simon and Schuster, 1988
 Buku Teks SO