Author
American International Shipbuilding Corp. (Philadelphia)
2
Gillingham, Harrold E. 1864-1954
2
Historical Society of Pennsylvania
2
Moore, J. Hampton 1864-1950
2
Bethlehem Steel Company
1
Chandler, Charles Lyon, 1883-
1
Cramp, William & Sons Ship & Engine Building Co. (Pa.)
1
Cyrus Fogg Brackett lectures Princeton University
1
Guild of Brackett lecturers
1
William Cramp & Sons Ship and Engine Building Co. (Philadelphia)
1