Forrest Miles Beauchamp was born on 19th October 1883 in Cotham, Gloucestershire, the eldest son of Frederick William Beauchamp and his wife, Minnie Blanche (née Dixon). Forrest had three brothers (Frederick Gordon, Arthur Kenneth and Penrith Sutton Beauchamp) and three sisters (Gladys Eveline, Dorothy Margaret and Grace Winifred Beauchamp).
In his youth Forrest lived with his family in Keynsham, Somerset, but later moved to Worcester. Between 1885 and 1900 he worked as a clerk for the Great Western Railway Company. By 1901 he and his family were living in Malvern Link, but around 1906 he moved to Regina (Manitoba), where he worked as a farmer.
In June 1916, two years after the outbreak of war, Forrest enlisted as a private in the Canadian infantry, with the serial number 255173, 46th Battalion. A year later, news reached him that his younger brother, Penrith, had been killed in action in Mesopotamia.
He was stationed in Dury, France, where he was shot and killed by enemy fire immediately after reaching the Battalion’s objective. He was 35 years old. His remains were buried in the Dury Crucifix British Cemetery.