Percival Melville Lemon is the son of Percy Lemon and Phyllis Lilian Hill.

Percival was born in 1921 in Derbyshire.

Percival married Phyllis E Tetlow in 1947 in Hendon, Middlesex.

He had the following children from his marriage to Phyllis E Tetlow:

- David E D Lemon	born in 1954 at Willesdon.
- Gary J Lemon	born in 1959 at Willesdon.

Details of Percival's occupation are not known.