Oops - never mind - I found him here:
http://tinyurl.com/kqu7yNational Roll of the Great War 1914-1918 (Manchester)
page 217:
LAMB, T. J., L/Corporal, 2/7th Manchester Regt.
Volunteering in October 1914, he was retained on work of National importance as an iron turner at Messrs. Blakeley's Munition Factory, Atherton, Lancs., and did consistently good work during the whole period of the war. He rendered valuable services and in 1920 after his demobilisation in February of the previous year, was still employed by the same firm. 12, Brunswick Street, Hulme, Manchester Z6950