Mobilised and posted to the Sherwood Foresters in August 1917
Posted to the 1/7th Battalion and later transferred to the 1/6th Battalion in January 1918
Evidence: 92039 Broom posted to 2/5th on 7th July 1917 and 94511 Tatters posted to 3rd Battn on 7th September 1917.
Frank initially served overseas with the 1/7th Battalion but was later transferred to the 1/6th Battalion, most likely at the time that the Robin Hoods disbanded in 1918 – see here. It’s quite possible that Frank was still serving with the 1/6th Battalion during the attack on the Hindenburg Line – see here.
There is no recored of when Frank was disembodied.
Frank was later transferred to the 2/5th Battalion in March 1915 when the 1/5th Battalion left for France with the 3rd West Riding Brigade of the West Riding Division. He was subsequently posted to the 27th Provisional Battalion in May 1915 before being transferred to the Army Reserve in August 1916.
The 2nd Provisional Brigade formed in North East England in May 1915 from the Home Service details of several regiments - see here.