Author
Polish American Congress
6
Polish Information Center (New York, N.Y.)
6
Carey, Mathew, 1760-1839
5
Polish Genealogical Society of America
5
American Relief for Poland
4
Polonus Philatelic Society
4
Rada Polonii Amerykańskiej
4
Coleman, Marion Moore, 1900-
3
Gromada, Thaddeus V., 1929-
3
Halecki, Oskar, 1891-1973
3
Kosciuszko Foundation
3
Papiernik, Don, 1937-
3
Polish American Council
3
Polish Tatra Mountaineers Alliance
3
Polish YMCA
3
Alliance College
2
Beider, Alexander
2
Biddle, Anthony J. Drexel, 1896-1961
2
Burstin, Barbara Stern
2
Chorzempa, Rosemary A., 1951-
2
Commission for Polish Relief
2
Cyran, Frederic B.
2
Fijałkowski, Paweł
2
Filipowicz, Tytus, 1873-
2
Haiman, Mieczysław, 1888-1949
2
Hoskins, Janina W.
2
Instytut Historyczny imienia Generała Sikorskiego
2
Jewish Museum (New York, N.Y.)
2
Jones, Richard S.
2
Kersten, Charles J.
2
Konopczyński, Władysław
2
Kosciuszko League, Detroit
2
Kółka Literacko Dramatyczne
2
Krzesiński, Andrzej J., 1884-1964
2
Kusielewicz, Eugene
2
Kwiatkowski, Ted, 1920-
2
Lange, Oskar, 1904-1965
2
Lenkiewicz, Antoni
2
Louvet de Couvray, Jean-Baptiste, 1760-1797
2
Lubelski Klub Polonijny
2
Nagórski, Z.
2
National Committee for a Free Europe (U.S.). Research and Information Center. Polish Section
2
Obal, Thaddeus J.
2
Osinski, Henry J.
2
Papiernik, Theresa, 1980-
2
Pietruk, Władysław
2
Polish American Museum Foundation
2
Polish Genealogical Society
2
Polish Institute of Arts and Sciences in America
2
Polish Labor Group (New York, N.Y.)
2
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