- Allin, Charles M.1
- American Hygienic and Hydropathic Association of Physicians and Surgeons.1
- Amussat, Alph. (Alphonse Auguste), 1821-18781
- Arnold, Richard D. (Richard Dennis), 1808-18761
- Atlee, Washington L. (Washington Lemuel), 1808-18781
- Atlee, Washington L. (Washington Lemuel), 1808-1878, author1