Lang was born in
Woolwich, to George Thompson Lang, an engineering toolmaker, and his wife Rebecca Davies. He was educated at
Haberdashers’ Aske's School in
Hatcham, London. In 1922 he married Emilie Jane Goddard (daughter of Henry Shelley Goddard), with whom he had one daughter. Emilie died in 1963, and in 1970 he married her sister, Kathleen Winifred Edmeades, the widow of Cecil George Elliott Edmeades. ==Career==