Priest and social reformer. Born Australia to parents who were there as missionaries. Educated in England. Vicar of Christ Church, Watney Street from 1929-48. Held left-wing views that he acted upon to the extent of suffering a broken nose at the Battle of Cable Street. 1948 he became warden, and later master, of the Royal Foundation of St Katharine, Died at Oxford.
The drawing of Groser is by Ronald Searle and the picture source website gives a full biography of Groser.