Author
National Slovak Society of the United States of America
11
Virginia State Library
8
Gale Research Inc
7
New Century Club (Philadelphia, Pa.)
6
Providence Association of Ukrainian Catholics in America
6
Ukrainian Workingmen's Association (U.S.)
6
American Philosophical Society
5
D'Hauterive, Borel
5
First Baptist Church (Philadelphia, Pa.)
5
Historical Society of Delaware
5
Latvijas evaņģēliski luteriskā baznīca
5
Pennsylvania Inspectors of Mines
5
Young Men's Christian Association (Philadelphia, Pa.)
5
American Bibliographical Center
4
American Latvian Association in the United States
4
Bucks County Historical Society
4
Catholic Record Society (Great Britain)
4
John Simon Guggenheim Memorial Foundation
4
Library of Congress
4
Maine Historical Society
4
Maryland Historical Society
4
National Society of the Colonial Dames of America
4
National Society of the Colonial Dames of America in the Commonwealth of Pennsylvania
4
Société d'histoire du protestantisme belge
4
Academy of Natural Sciences of Philadelphia
3
African Methodist Episcopal Church
3
American Anti-Slavery Society
3
American Iron and Steel Association
3
Archaeological Institute of America
3
Art Club of Philadelphia
3
Association of American Boyers
3
Augustan Society
3
Bedford Street Mission of Philadelphia
3
Bliss, George S.
3
Canada. Employment and Immigration Canada (Department)
3
Chamber of Commerce of Greater Philadelphia
3
Conseil de la vie française en Amérique
3
Československý ústav zahraniční v Praze
3
Episcopal Academy (Newtown Square, Pa.)
3
Episcopal Church
3
First Catholic Slovak Union of America
3
Gale Research Company
3
Gettysburg College
3
Huguenot Society of London
3
Huguenot Society of New Jersey
3
Maryland. Hall of Records Commission
3
Massachusetts Historical Society
3
McIlwaine, H. R. 1864-1934
3
Merchants' Fund (Philadelphia, Pa.)
3
National Lutheran Council
3
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