- Butler, George F. (George Frank), 1857-1921 author1
- Būnī, Aḥmad ibn Qāsim ibn Muḥammad al-Sāsī al-Tamīmī, 1594-16911
- Cancino, J. T., author1
- Carter, J. E., active 18371
- Chapman, E. N. (Edwin Nesbit), 1819-18881
- Chapman, E. N. (Edwin Nesbit), 1819-1888, author1
- Colbatch, John, Sir, 1670-17291
- Coleman, Warren, 1869- , author1
- College of Physicians and Surgeons in the City of New York.1
- Coste, Jean-François, 1741-18191
- Council on Pharmacy and Chemistry (American Medical Association), author.1
- Culpeper, Nicholas, 1616-16541
- Dake, J. P. (Jabez Philander), 1827-1894, author1
- David, Wm. K. (William King)1
- Dorsey, John Syng, 1783-18181
- Duncan, Andrew, Jun., 1773-18321
- Eaton, Robert, 1688?-1728, author1
- Elliot, John, 1747-17871
- Fincke, B. (Bernard), 1821-1906, compiler1
- Fletcher, Robert, 1823-1912, author1