Ian D. Lavender is the son of Harvey Douglas Lavender and Winifred M. White.

Ian was born in 1951 in Leicester, Leicestershire.

Ian married Barbara Maddren in 1972 in Leicester, Leicestershire.

He had the following children from his marriage to Barbara Maddren:

- Paul Keiran Lavender	born in 1977 (date suppressed) in Malton, North Yorkshire.
- Robert Sean Lavender	born in 1981 (date suppressed) in Scarborough, North Yorkshire.

Details of Ian's occupation are not known.