Haldane was born in
Edinburgh to Mary Elizabeth Burdon-Sanderson and
Robert Haldane. His grandfather was the evangelist
James Alexander Haldane. His mother was the daughter of Richard Burdon-Sanderson and the granddaughter of Sir
Thomas Burdon. His maternal uncle was the physiologist
John Scott Burdon-Sanderson. He was the brother of
Elizabeth Haldane,
John Scott Haldane and
Richard Burdon Haldane, 1st Viscount Haldane. He was educated at
Edinburgh Academy and the
University of Edinburgh. He married Margaret Edith Stuart Nelson (died 1943). They had three children: •
Thomas Graeme Nelson Haldane (1897–1981) •
Archibald Richard Burdon Haldane (1900–1982) • Mary Elizabeth Campbell-Fraser (1895–1983) He died in
Cloan, Perthshire, aged 87. ==References==