Though I appreciate the DNA test suggestion, it's probably going to be a last resort. There's not enough regulations around what companies can do with that information fore me to feel comfortable with. I'm not entirely opposed, but I would feel better if there were clear cut regulations in place. If I can't find anything, I'll make the suggestion to Dad again. I'd mentioned it a few years back and he ruled it out based on cost alone
I'd had a trial membership to one of those family tree sites (I think it was Ancestry) and quicky discovered that most of the information about my family was wildly incorrect and gave up on that pretty quickly. It's been a few years though, so I may try it again. I just need work to slack off a bit so I'm not working stupid hours.
When I was talking to my mother earlier I meant to ask if they had any paperwork at all (even if they've never looked at it), but the latest disaster distracted us. I'd like to try and at least confirm any of the info we do have.