Thanks once again.
I have had a play with 1837.com and that has confirmed a few details.
I have been given a family tree of a family which is interlinked with ours quite closely.
I now know the following.
Dad is Philip James Clark (Born Luton 20th April 1948)
Dad's Dad was Alec Samuel Clark (Died Luton October 1989)
Dad's Mum was Ruth Mary Kingham (Died 1973)
I think....
My Great Grandad's name was Arthur George.
Small beginnings eh!
DeepC
(Daniel Philip Clark (Born Luton 28th April 1977))