The marriage is correct from RIC. One needs the Marriage Cert to get further,
1875 Aug 26 born Middlesex
1881 census at Harrow
1898 Apr 11 married Kent to Mary Ann Sophie McMillan, His father is given as Henry George Brown
1921 Oct 27 enlisted with RIC no 83062 . Platelayer & ex-Soldier
1939 Register living at Church Cottage, Teynham, Swale R.D., Kent. He is a General Labourer living with Florence Young (he has not married her)