He was a Fellow of the Royal College of Physicians, the first editor of Guy's Hospital Reports,[1] and the principal author of A Manual of the Practice of Medicine.
[2] The son of a clergyman, he was named after Sir George Barlow, 1st Baronet.
Disliking life in the Royal Navy, he went to Trinity College, Cambridge, where he read arts and medicine.
At Guy's Hospital, he and George Owen Rees were supervised by Richard Bright in jointly investigating renal diseases.
[1] Barlow was a contemporary and colleague of both Thomas Addison, and Henry Marshall Hughes, to whom he dedicated his Manual.