Charles Marks was professor of surgery at Louisiana State University, New Orleans. He was born in Kremenchug, Ukraine, the son of Abe Marks, a businessman, and Sonia Marks née Beck, a housewife. He migrated to South Africa, where he matriculated from Wynberg Boys’ High School in Cape Town in Decembe

Kingsley Lawrance was born in London on 22 July 1924, into a Quaker family. His father, Henry, was a builder and contractor. His mother was Elsie Ruth née Ramsbotham. He was educated at Highgate School, from which he went to St Bartholomew's, qualifying in 1946. After a year on the house at Bart's,