Thanks for all that help !
It "feels" right somehow - but I have had several false hopes.......
Unfortunately the name is George Cooper, and there are millions of them.
Also, family history has it that there is a tie-in with Iver Heath in Bucks, which doesn't fit the two that I have in mind. I can't even identify him well enough to get a birth certificate for my gt-gf, which would really get me started.
I've done really well on other branches, but this one, my fathers and the most important, has gone nowhere for months. I'd love it to be this family, as there are loads of brothers and sisters (one is a signal boy) and the generations before are similar. There are police oficers for instance in the 1850's, which I feel must make interesting research. I just can't make that vital definite connection.....