Sir Robert Lock

Sir Robert Ferguson Lock KBE CB (13 December 1879 - 25 July 1957) was a British major general in the Royal Artillery who served during the First World War. He was awarded the CB in 1937 and KBE in 1944.

In 1910 he married Kathleen‎ Beryl Penton, daughter of Arthur Pole Penton CB, CMG, CVO in 1910. They had a daughter Ursula whose second husband was the composer Ralph Vaughan Williams, another duaghter, and a son Robert John Penton Lock who also served as an aritlleryman in the Second World War, dying in 1944.

from: http://en.wikipedia.org/wiki/Sir_Robert_Lock