Author
Jones, Richard S.
65
Library of Congress. Congressional Research Service
33
Library of Congress Congressional Research Service
32
Sokol U.S.A.
15
Sons of the Revolution. Pennsylvania Society
15
Society for Propagating the Gospel among the Indians and Others in North America
14
American Latvian Association in the United States
13
National Society of the Colonial Dames of America
11
National Slovak Society of the United States of America
9
American Association for State and Local History
8
National Society of the Colonial Dames of America in the Commonwealth of Pennsylvania
8
First Catholic Slovak Union of America
7
Polish National Alliance of the United States of North America
6
Sons of the American Revolution
6
American Convention for Promoting the Abolition of Slavery and Improving the Condition of the African Race
5
American Gymnastic Union
5
American Turners (Organization)
5
Armenian Assembly of America
5
Bednár, Karol
5
Daughters of the American Revolution
5
Order of Ahepa
5
Pennsylvania Society for Promoting the Abolition of Slavery
5
Society of the Cincinnati in the State of New Jersey
5
Sons of the American Revolution. Pennsylvania Society
5
American Jewish Historical Society
4
American Lithuanian Roman Catholic Federation
4
Federation of Genealogical Societies (U.S.)
4
Grand Army of the Republic. Department of Pennsylvania
4
Irish Catholic Benevolent Union
4
Lithuanian Roman Catholic Federation of America
4
National Municipal League
4
Polish American Historical Association
4
Polish Falcons of America
4
Polish Genealogical Society of America
4
Polonus Philatelic Society
4
Society for Propagating the Gospel among the Indians and Others in North America Select Committee
4
Society of the Cincinnati
4
Society of the War of 1812
4
Sons of the Revolution Pennsylvania Spciety
4
Stowarzyszenie Filaretów w Ameryce
4
Union of American Hebrew Congregations
4
Woodruff, Clinton Rogers, 1868-1948
4
Workmen's Circle (U.S.)
4
American Colonization Society
3
American Jewish Committee
3
American Protestants for Truth about Ireland
3
American Relief for Poland
3
American Turnerbund
3
American-Scandinavian Foundation
3
Archives of Czechs and Slovaks Abroad
3
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