The chap with the fine moustache is Edgar Whiteley the agent for the first ever Co-operative Party candidate in 1918. In those days they usually had a committee running the election but he was the most experienced in election work. His previous success was in getting Victor Grayson elected for Colne Valley as a Socialist (not Labour Party approved) in 1907. Edgar Whiteley was active in the early days of the Co-operative Party in Manchester. Amongst other activities he was President of Manchester & Salford Co-op Society, ran the the National Labour Press, was a City Councillor, and in 1924 stood for Labour in Withington Constituency but lost the £500 deposit.
Part of the history series...it'll run and run.