Author
Latrobe, Benjamin Henry, 1764-1820
5
Maryland Historical Society
5
Brownell, Charles E.
2
Carter, Edward C., II, 1928-2002
2
Fitz-Gibbon, Costen
2
Formwalt, Lee W.
2
Stapleton, Darwin H.
2
Van Horne, John C.
2
Aikman, Lonnelle
1
American Philosophical Society
1
Benson, Barbara E. 1943-
1
Cohen, Jeffrey A., 1952-
1
Connecticut Society of Civil Engineers Meeting
1
Eleutherian Mills Historical Library
1
Hamlin, Talbot, 1889-1956
1
Kirby, Richard Shelton, 1874-
1
Kirtley, Alexandra Alevizatos,
1
Olley, Peggy A.,
1
Regional Conference in Economic History Eleutherian Mills Historical Library)
1
Smith, William, 1727-1803
1
United States Capitol Historical Society
1