- Jacobus Moleschott1
- Jacquin (Jos.)1
- James Anderson, L.L.D.-F.R.S.-F.A.S.-S. &c1
- James Arthur Wilson, M.D1
- James Bardsley1
- James Burnes, L.L.D.K.H. F.R.S: Physician General, Bombay Army1
- James Copland1
- James Currie, M.D. F.R.S3
- James Curry. M.D. & F.A.S2
- James D. Dana1
- James Dickson F.L.S1
- James Edward Smith, M.D.F.R.S: President of the Linnaean Society1
- James H. Blaisdell, Jr., M.D1
- James H. Henry, M.D1
- James H. Stokes1
- James Hope Esqr. M.D. F.R.S. &c. &c1
- James Johnson, M. D: Physician Extraordinary to the King1
- James K. Crook, M.D1
- James Luke1
- James Luke, F.R.S1