Thanks for your comments.
As for nothing to lose bramhallbill I take you point, but my concern would be the loss of respect from within the family.
It's akin to being one of those metal detector guys, many would rather you did not go digging around but when you find something of interest, well...... that's different.
As for any arm waving Marmalady again I take the point but gosh, it's difficult when you find out your dear old dad for example was in fact a bit of a bugger who ditched his first family only to have another!
A hard one to be sure, and a lesson in discretion that life has not taught us how to deal with. The only one I ever had I suppose was from my mother who said you could not put the clock back to which my only reply was, but what about putting the clock right?
Rest her soul, she never had an answer for that.