Michael J. (Mike) Hart was born in 1954 (date suppressed) in Wokingham.

Mike married Anita M. Martin on Saturday 1 February 1975 in Yeovil, Dorset.

He had the following children from his marriage to Anita M. Martin:

- Simon Richard Hart	born in 1975 (date suppressed) at Yeovil.
- Victoria Anne Hart	born in 1976 (date suppressed) at Yeovil.
- Jonathon Robert Hart	born in 1982 (date suppressed) at Bracknell.

Details of Mike's occupation are not known.