[3] Prior to the start of World War I, Colman made 22 first-class appearances for the university.
[7] He later served in the Machine Gun Corps, achieving the rank of temporary captain in January 1917.
[6] On 25 February 1919, Colman married Lettice Elizabeth Evelyn, daughter of Charles Robert Whorwood Adeane, of Babraham Hall, Lord Lieutenant of Cambridgeshire.
[3] As a member of the Norwich Colman's family, he served as a company director until his death at Framingham Earl, Norfolk, on 18 March 1935,[10] from endocarditis caused by a chest wound sustained during the war.
[11] After his death, the thatched pavilion at the County Ground in Lakenham was erected in his memory in 1936.