He became a councillor on Fulham borough council, 1934–37.
In 1957, Crossman joined Aneurin Bevan and Morgan Phillips in a controversial lawsuit for libel against The Spectator magazine, which had described the men as drinking heavily during a socialist conference in Italy.
Phillips Academy | Phillips Exeter Academy | Sam Phillips | Morgan Stanley | Morgan Freeman | J. P. Morgan | Piers Morgan | Morgan Tsvangirai | John Hunt Morgan | Morgan Spurlock | Wendell Phillips | Morgan | Leslie Phillips | Sally Phillips | Phillips | J.P. Morgan & Co. | Harry Morgan | Frank Morgan | Dennis Morgan | Wilson Phillips | Thomas Phillips | Morgan County | Lou Diamond Phillips | Lorrie Morgan | Henry Morgan | Tracy Morgan | Siân Phillips | Morgan horse | Morgan Fairchild | Michèle Morgan |