 d. John Ireland identifies the president as "Mr Frieake, the master of Nourse, to whom Mr Potts was a pupil".Since Ireland identifies him as the master of Nourse, he undoubtedly means John Freke, an acquaintance of Hogarth's and surgeon at St Bartholomew's Hospital from 1729–1755 and a Governor 1736–1756.The dissection could be taking place at St Bartholomew's Hospital, where all three surgeons were based, but it also has features of the Cutlerian Theatre of the Royal College of Physicians near Newgate (particularly the throne, which bears their arms, and its curved wall resembling a cockpit) and the niches of the Barber-Surgeons' Hall (which was not used for dissection after the surgeons split away to form the Company of Surgeons in 1745).