Author
- (Francis) Perot's Sons Melting Co. (Philadelphia) 1 results
- 1305 Walnut St. Corp 1 results
- 21st Ward Board of Trade and Business Men's Association (Philadelphia, Pa.) 1 results
- AIDS Information Network (Philadelphia, Pa.) 1 results
- Abbott, A. C. (Alexander Crever), 1860-1935 1 results
- Adams, Arlin M. 1 results
- Adams, James H., 1966- 1 results
- Albrecht, Harry P. 1 results
- Alden, J. E. (Judith E.) 1 results
- Alexander, Raymond Pace, 1898-1974 1 results
- Allen, R. H. (Richard Howe), 1821-1892 1 results
- Alliance française de Philadelphie 1 results
- Alotta, Robert I. 1 results
- Ambros, Marion 1 results
- America Hose Company, No. 17 (Philadelphia, Pa.) 1 results
- American Catholic Historical Society of Philadelphia 5 results
- American Dredging Company 1 results
- American Philosophical Society 2 results
- American Public Health Association Meeting 1 results
- American Swedish Historical Foundation 1 results
- American Women's Heritage Society, Inc 1 results
- Anastasia, George, 1 results
- Anderson, Laurie Halse 1 results
- Andre, John, Major 1 results
- Arbour, Keith 1 results
- Arcadia Publishing 1 results
- Arcangeli, Bianca, 1948- 1 results
- Ardoin, John, 1 results
- Armor, Thomas 1 results
- Armstrong, Robert 1 results
- Arnold, Lee, 1959- 2 results
- Arnold, Stanley Keith, 1 results
- Aronson, Mark N. 1 results
- Arrigale, Lawrence M. 1 results
- Ashman, William N. (William Neilson), 1833- 1 results
- Ashmead, Henry Graham, 1838-1920 1 results
- Ashmead, John, 1738-1818 1 results
- Aspinwall, Marguerite 1 results
- Association of Old Members of the Protestant Episcopal Academy (Philadelphia, Pa.) 1 results
- Athenaeum of Philadelphia 1 results
- Atwater Kent Museum 1 results
- Augustinian Historical Institute 1 results
- Auvergne, Caroline 1 results
- Avery, Ron 1 results
- Awbury Arboretum (Philadelphia, Pa.) 1 results
- Axe, William W. 1 results
- Ayako, Fukushima 1 results
- Bache, A. D. (Alexander Dallas), 1806-1867 1 results
- Bacon, John M. 1 results
- Bacon, Margaret Hope 3 results more…