Douglas MacLeod was born on 9 May 1901. Few families can have devoted so many members to the art of surgery. His great-grandfather, John MacLeod, MD was Surgeon to the Madras Presidency. His grand-father, Alexander Charles MacLeod (1819-1914), father, Charles Edward Alexander MacLeod (1867-1939), an

John Henry Milnes Walker was born on 16 March 1902 in Wakefield, the son of John William Walker and his wife Constance Elizabeth, née Holdsworth. His father and grandfather had both been surgeons on the staff of Clayton Hospital and his wife's father had been a physician there. He was educated at Ou