Author
Leibert, Augustus H.
2
Nelson, Vernon H.
2
Schultze, Augustus, 1840-1918
2
Academy of Natural Sciences of Philadelphia
1
Beck, James M. 1861-1936
1
Bethlehem Area Foundation
1
Brown, Thomas Messinger, 1842-1904
1
Butz, Lee
1
Byers, Jeff
1
Campion, Joan
1
Frazer, Persifor, 1844-1909
1
H & H Engineers (Organization)
1
Historical Society of Pennsylvania
1
Johnson, Walter R. 1794-1852
1
Jordan, John W. 1840-1921
1
Larson, Paul, 1932-
1
Lehigh University
1
MacVeagh, Wayne, 1833-1917
1
Murtagh, William J.
1
Schwarz, Ralph Grayson
1
South Bethlehem Historical Society
1
Stolarik, M. Mark, 1943-
1
Waltman, Charles A.
1
Willson, Hub
1