The collection comprises photographs and correspondence, c.1945-1974, concerning Hannan’s political career and his time in Clement Attlee’s cabinet, with several letters of two British Prime Ministers: Clement Attlee and Harold Wilson. Furthermore, it includes Hannan’s ministerial despatch box and an illustrated edition of ‘The Dolly Ballads’ by Robert Blatchford, inscribed by Herbert Morrison, MP, to Helen Hannan, William’s daughter.