Author
- (Francis) Perot's Sons Melting Co. (Philadelphia) 1 results
- AIDS Information Network (Philadelphia, Pa.) 1 results
- Abbot, George Maurice 1 results
- Abbott, A. C. (Alexander Crever), 1860-1935 2 results
- Abbott, Norman 2 results
- Abrahams, Harold J. 2 results
- Abrahams, Harold J., 1901- 1 results
- Academy of Natural Sciences of Philadelphia 1 results
- Adams, Arlin M. 1 results
- Adams, James H., 1966- 1 results
- Addison, Edward T. 1 results
- Alewitz, Sam, 1918- 1 results
- Alexander, John K. 1 results
- Alexander, Raymond Pace, 1898-1974 1 results
- Alfred M. Herkness & Co. (Philadelphia) 1 results
- Allen, Jane E. 1 results
- Allen, Philip Meredith, 1893- 1 results
- Allen, R. H. (Richard Howe), 1821-1892 1 results
- Allen, Roger B. 1 results
- Allen, William 1 results
- Alliance française de Philadelphie 1 results
- Alotta, Robert I. 4 results
- Alsop, Gulielma Fell, 1881- 1 results
- Altemus, Eleanor Ward, 1917- 1 results
- Ambros, Marion 1 results
- America Hose Company, No. 17 (Philadelphia, Pa.) 1 results
- American Historical Association 1 results
- American Institute of Electrical Engineers 1 results
- American Philosophical Society 1 results
- American Public Health Association Meeting 1 results
- American Swedish Historical Foundation 1 results
- Ames, Herman Vandenburg, 1865-1935 2 results
- Amoroso, Nicole 1 results
- Anastasia, George, 1 results
- Anders, James M. (James Meschter), 1854-1936 3 results
- Anderson, John, 1954 March 27- 1 results
- Arcangeli, Bianca, 1948- 1 results
- Ardoin, John, 1 results
- Arkell, Roland 1 results
- Armstrong, Agnes 1 results
- Armstrong, Robert 1 results
- Armstrong, W. G. 1 results
- Arner, Robert D. 1 results
- Arnold, Lee, 1959- 2 results
- Arnold, Stanley Keith, 1 results
- Aronson, Mark N. 1 results
- Arrigale, Lawrence M. 1 results
- Ashbrook, William S. (William Sinclair), b. 1868 1 results
- Ashhurst, Richard Lewis, 1838-1911 2 results
- Aspinwall, Margaret 1 results more…