John Denis Greenhough is the son of Alfred Denis (Alf) Greenhough and Sarah Buxton (Sally) Smith.

John was born in 1926 (date suppressed) in West Bromwich, Staffordshire.

John married Mollie Brenda Minett in 1953 in Wednesbury, Staffordshire.

He had the following children from his marriage to Mollie Brenda Minett:

- Nicholas A. Greenhough	born in 1962 (date suppressed).
- Caroline Greenhough	born in 1965 (date suppressed).

Details of John's occupation are not known.