[3] At the outbreak of World War II, Carr was offered commissions by the War Artists' Advisory Committee to paint scenes of bomb damage in London, both to landmarks such as St Pancras railway station and St Clement Danes Church and to housing in the suburbs.

In 1943 Carr became a full-time, salaried, War Office Artist and travelled first to North Africa and then to Italy.

As well as portraits of Allied soldiers and officers, he painted military actions and landscapes in Algiers, Tunis, Cassino and Sessa in Italy.

In 1948 he was elected a Fellow of the Royal Society of Portrait Painters and in 1956 he was awarded the Gold Medal at the Paris Salon.

[7]>[6] Between 1957 and 1959 he produced a series of fourteen murals, showing the stages of textile production for the Salts Mill.