Herbert was the adopted son of James & Matilda Frost of the “William IV” Public House, Baldock Street, Royston, Hertfordshire. Before the outbreak of the Great War he was employed as a local Postman.
He was posted to France on the 30th July 1915. On the 11th February 1917 the Battalion were ordered to push forward their line of posts on the E side of the Puisieux Road, in the Ancre Valley. The attack was made in the dark and some of the assaulting troops were held up by enemy wire and heavy machine gun fire. It was during this attack that Herbert went missing.