John James Drysdale (1816–92)
Physician. MD, Edinburgh, and LRCS, 1838. Practised in Liverpool. Collaborated with William Henry Dallinger on microscopical investigations of flagellate protozoa.
BMD (Death index)
Census returns of England and Wales 1871 (The National Archives: Public Record Office RG10/3784/4/1)
Edinburgh Academy register
ODNB s.v. Dallinger, William Henry.