[2] He served in a Casualty Clearing Station from June to September and then was attached to 48 Infantry Brigade during the Battle of the Somme.
[3] In 1918 he wrote an account of his experiences there, and kept a diary of his involvement in the British retreat of March–April 1918.
[4] These documents recount his feelings of being gassed, wounded and standing close to men killed by shellfire, and of praise for his preaching.
Knyvett was twice mentioned in despatches, transferred to the RAF in May 1918, was awarded the OBE and was demobilised in 1919.
He was appointed Vicar of Benwell and Archdeacon of Northampton[5] and he ascended to the episcopate in 1941, a post he held until retirement 21 years later.