Author
Grossmann, Kurt R. 1897-1972
2
Pennsylvania Historical and Museum Commission
2
Alexander, June Granatir, 1948-
1
Breitman, Richard, 1947-
1
Czechoslovak Genealogical Society International
1
Čulen, Konštantín
1
Koepplin, Leslie W., 1944-
1
Kraut, Alan M.
1
Pennsylvania Department of Education
1
Pennsylvania. Department of Education
1
Roy, Patricia, 1939-
1