Francis Wrentmore Brown was born at Kingston on the 27th of June 1895, the son of Samuel Brown and Alice Kate Brown of "Trevena", 24 Manorgate Road, Kingston-on-Thames.

He was educated at Shrewsbury House Preparatory School and at Marlborough College from September 1909 to December 1912.

He joined the ranks in 1914 and went to France in November. He died of wounds received during the Battle of Flers–Courcelette (one of the many Battles fought during the Battle of the Somme) on the 16th of September 1916 - aged 21 years.

He is commemorated on a tablet at St Andrew's Church, Stratton, in Cornwall and also at Shrewsbury House School. He was buried at Grove Town Cemetery, Meaulte.