Douglas J. Smith was born in 1951 (date suppressed) in Huntingdon.

Douglas married Wendy S. Phillips on Saturday 10 June 1978 in Bromsgrove, Worcestershire.

He had the following children from his marriage to Wendy S. Phillips:

- Sarah Louise Smith	born in 1987 (date suppressed) at Peterborough.
- Andrew James Smith	born in 1989 (date suppressed) at Carmarthen.

Details of Douglas's occupation are not known.