Author
76 Carriage Company
1
A Cappella Arts (Firm)
1
A-O-A Ltd
1
A. Pomeroy & Co
1
A.H. Mueller & Co
8
ADC (Firm)
24
Abbot, H. L.
1
Aber, Harold E.
1
Adams
1
Adams, James Truslow, 1878-1949
1
Adams, Randolph Greenfield, 1892-1951
1
Adler, Phoebe
1
Advanced Illustration Ltd
1
Aero Service Corporation,
1
Aitken, Robert, 1735-1802
1
Alexander, J. H. 1812-1867
1
Alexandria Drafting Co. (Alexandria, Va.)
1
Alexandria Drafting Company
10
Algué, José,
1
Alleghany Railroad and Coal Co
1
Alleghany Railroad and Coal Company
1
Allegheny National Forest Vacation Bureau
1
Allen, Gloria Seaman
1
Allen, Lane & Scott
2
Allen, William
1
Allezard, Jean Joseph
1
American Association for the Advancement of Science. Annual Meeting
1
American Atlas Company, Cleveland
1
American Automobile Association
3
American Bar Association Meeting
1
American Board of Commissioners for Foreign Missions
1
American Emigration Land Co. (Philadelphia)
1
American Geographical Society of New York
2
American Imprint Collection (Library of Congress)
3
American Map Corporation
2
American Pharmaceutical Association. Annual Meeting
1
American Philosophical Society
2
American Samoa Visitors Bureau
1
American Society for Colonizing the Free People of Colour of the United States
3
Amerika-Haus Berlin
1
Anderson, Alexander, 1775-1870
1
Andreas, A. T. 1839-1900
1
Andrews, William Loring, 1837-1920
1
Andriot, John L.
1
Anghiera, Pietro Martire d', 1457-1526
1
Ann Arrundell County Historical Society
1
Ann Arundel Genealogical Society
1
Arka Cartographics Limited
1
Arms, C.T.
1
Arms, W.F.
1
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