From Debra Jackson's GR tree:
Alfred was a Rifleman in the 1st / 5th batallion in the London Regiment of London Rifle Brigade. He died in action in Somme France on Sunday the 8th of October 1916 aged 23. He is buried at Thiepval Memorial Somme, France. Pier and Face 90. He was listed as the son of Alfred Churchyard of 48 Monastery Gardens, Enfield Middlesex, England.