Enid Rockstro was born on 17 December 1902 in Halesowen, Worcestershire, the daughter of Frank Braine Rockstro, a general practitioner, whose father was a leading flautist and musician of his time, and whose uncle was the well known musician, Sir William Rockstro. Her mother, Elaine Mary, née Ashby,

Evan Stanley Evans, the eldest son of David Evans, was born on 2 July 1904. There are no details of his early education before he entered St Bartholomew's Hospital Medical College. After qualifying in 1927 he was house surgeon at St Bartholomew's and later moved to Heatherwood Hospital, Ascot, where