George Thomas Bettany,
Dictionary of National Biography…
(1890)
“ He studied medicine in the university of Edinburgh under Monro primus, Cullen, Black, and Whytt. He acknowledged himself much indebted to the professors, although he denounced some of their stuffy lecture-rooms. It is doubtful whether he qualified at Edinburgh, where, in 1783, he was described as 'the person calling himself Dr. Graham.' He settled in Pontefract, and there married in 1770. He then travelled in America as a doctor, and specially practised as an oculist and aurist. ”
