Thomas Henry Tweedy was a consultant surgeon in Gateshead. He was born in Cramlington, Northumberland, on 23 April 1918, the son of Ernest Victor and Mary Elizabeth Tweedy. His father was an 'outside manager' for Scottish and Newcastle Breweries, but also accompanied silent movies, having taught him

Roland Jones was a consultant surgeon at Essex County and Black Notley Hospitals. He was born in Southport, Lancashire, on 16 May 1919. His father Norman was an architect, his mother was Esther née Cooper. He was educated at Oundle and St John's College, Cambridge, from which he went to St Thomas's