Methuen wrote to Kenneth Clark in December 1939 offering his services, and was put on this list. He also requested sketching permits so that he could paint in the hours he was not doing his military duties, although he was often questioned by the police about these activities.
In July 1940 Methuen was offered a commission for two pictures of London by moonlight, for a fee of 50 guineas (IWM:ART LD 622; LD 623). He expressed a particular interest in drawing St Paul's cathedral surrounded by bomb damage (15) (see IWM:ART LD 5860) and asked to draw Bow Church in Cheapside (LD 784), and a subject in Charing Cross Road (LD 785) (18), later purchased for 18 guineas the two.
Two further submissions from Lord Methuen were declined in June 1941 (41), as was a picture forwarded by the Leicester Galleries in July 1943 (36). However in January 1944, LD 3707 was purchased for 20 guineas (40), and in March the same year he was commissioned, possibly for IWM:ART LD 4043-4. He presented LD 3844, LD 3851 and IWM:ART LD 3852 in the same month. Two further works, LD 5860 and 5933, were presented to the Imperial War Museum after the war, in 1947 and 1950 respectively.