He was the son of Robert John Ervin, 32 Lucerne Parade, Belfast. Ervin attended Stranmillis and Fane Street Primary Schools before moving on to RBAI (Inst.) from 1936 to 1941.
Ervin joined the Royal Navy Fleet Air Arm and served 4 years. He served in home waters as well as all over the world ... to South Africa, the Far East, Ceylon, Burma and Australia. His 21st birthday was spent in the Indian Ocean.
Ervin was a member of the Belfast Banking Company Sports Club in March 1947 paying 5 shillings subscription.
He is recorded in the 1966 annual accounts of the Belfast Banking Company as being the assistant manager of Donegall Square North branch. Transfers followed to positions in Head Office, Inspection Staff, Advances Controller, Regional Director and Managing Director (1972).
The Belfast Telegraph dated 24th February 2015 published a death notice saying that Wilson Ervin had died on 22nd February 2015. A Service of Thanksgiving was held on 25th February 2015 at Fisherwick Presbyterian Church, Malone Road, Belfast.