Born on 30 April 1868 at Batley, Yorkshire, son of Canon Brian Christopherson, later Rector of Falmouth, Christopherson was educated at Newcastle-upon-Tyne Grammar School, Clifton College, Caius College, Cambridge and St Bartholomew's Hospital. After qualifying in 1893 he continued his studies at Vi

Born 29 March 1872 at Scarborough, third child and eldest son of the Rev John Augustus Leicester, a priest of the Church of England who held no regular living, and his wife Charlotte Eliza Holdich. He was educated at Dulwich College and University College, London, where he took honours in physiology