Author
Duffy, Edward W., 1947-
2
Albertype Co
1
Bernhart, Benjamin L.,
1
Bernhart, John H. L. Dr.,
1
Bernhart, John L. Dr.,
1
Green, J.E. (Chester, Pa.), photographer
1
Gruber, Harry, photographer
1
Howland, Henry C., photographer
1
International Film Service, photographer
1
Meyers, Allen
1
Pennsylvania Railroad
1
Pennsylvania Railroad Technical & Historical Society. Philadelphia Chapter
1
Philadelphia War Photograph Committee (Pa.)
1
Philadelphia War Photograph Committee : Henry C. Howland, International Film Service, J.E. Green, J.W. Replogle, Harry Gruber
1
Replogle, J.W., photographer
1
Spivak, Joel
1
Sundman, Jim,
1