John William Collman Williams

General Sir John William Collman Williams (born 1824) was a Royal Marines officer who served as Deputy Adjutant-General Royal Marines.

Military career
Williams was commissioned into the Royal Marines on 7 July 1842. He became Assistant Adjutant of Royal Marine Forces in November 1867, second commandant of the Royal Marine Artillery in April 1870 and commandant of the Royal Marine Artillery in October 1872. He went on to be Deputy Adjutant-General Royal Marines (the professional head of the Royal Marines) in September 1883 before retiring in August 1888.