Background
Mansfield became 4th Baron Sandhurst upon the death of his father, John William Mansfield, the 3rd Baron Sandhurst, in 1933.
Mansfield became 4th Baron Sandhurst upon the death of his father, John William Mansfield, the 3rd Baron Sandhurst, in 1933.
He was educated at Winchester College and Trinity College, Cambridge.
Military service
During World War I he served with the Royal Engineers Signal Service, and was made Officer of the Most Excellent Order of the British Empire in 1918. In 1939 he was commissioned as a Major in the Royal Corps of Signals in 1939 and worked for MI8. They had three children:
Valerie Mansfield (25 December 1918 - 3 August 1994)
John Edward Terence Mansfield, 5th Baron Sandhurst (born 4 September 1920)
Ralph Geoffrey Knyvet Mansfield (born 8 November 1926).