"Rhondda by-election, Wales, 20 March 1934. "

"A photograph of William Henry Mainwaring (1884-1971), Labour MP for Rhondda East, 1933-1959, canvassing for votes during the Rhondda by-election at Penygraig Colliery, taken by Tomlin for the Daily Herald newspaper. This photograph has been selected from the Daily Herald Archive, a collection of over three million photographs. The archive holds work of international, national and local importance by both staff and agency photographers."