Details of Thomas's birth are not known.

Thomas married Joan G. Greenhough in 1960 in Willesdon.

He had the following children from his marriage to Joan G. Greenhough:

- Graham Wickham	born in 1966 in Brent.
- Susan Wickham	born in 1968 in Brent.
- Mark Wickham	born in 1970 at Hammersmith, London.

Details of Thomas's occupation are not known.