Victor Pasmore, Thomas Carr, Claude Rogers, William Coldstream and Geoffrey Tibble. In the same year Bell worked for Mass Observation in Bolton, with Humphrey Spender the photographer. (Their sketchbooks and photographs are conserved by Bolton Museum.) In 1939 Bell published the pamphlet, The Artist And His Public, and wrote the Plan for Artists with Kenneth Clark, urging patronage for contemporary artists. As a result, several of his contemporaries were able to become artists, whose careers might have ended because of financial necessity. In 1942 Ernest Brown & Phillips exhibited Bell's work along with paintings by Anthony Devas, Thomas Carr and Lawrence Gowing. After the outbreak of World War II in 1939, Bell enlisted with the Royal Air Force to be trained as a pilot. In about 1940 he painted some watercolors of Ewenny Priory and other sites in Glamorgan, as part of the 'Recording Britain' scheme, devised by Kenneth Clark and supported by the Pilgrim Trust. When under his basic training in Wales he suffered a bad break of his leg during a Sunday morning football match. This delay in training meant that he became too old to continue as a pilot and so entered a navigators course. After training in South Africa he returned to UK in early 1943 with the rank of pilot officer. In June he arrived at RAF Ossington the base of 82 OTU. On 9 August 1943 his Wellington bomber plane developed an engine failure near the end of a training flight, the pilot lost control and it crashed near to Newark-on-Trent in Nottinghamshire, killing all the crew – thus ending at the age of 32 what was becoming one of the most sensitive and conscientious artistic careers. Before the war and up to his death, Graham Bell was in a relationship with Anne Popham Anne Olivier Bell. War time letters to his mother and to Anne Popham are held in the Tate Archive and these indicate his intention to divorce his wife and marry Anne Popham. In the decade after his death, his widow married the art collector Gerald Reitlinger and Anne Popham married the artist Quentin Bell. The similarity of the forenames and surnames of these two women is sometimes the cause for confusion amongst researchers. In 1960, Harriet Graham Bell, Frank's only daughter, married art collector John Cullis. After the war Lund Humphries published The Paintings of Graham Bell with an introduction