I've had to do that and I just tell them that I simply can't remember people's names going back that far but I can give them the phone number for HR and they can figure it out from there. Never had a problem with that (so far).
Re the salary: Maybe ask them about benefits. Hopefully they're really good so that will make up the difference?
It is really amazing what companies check on these days though. I had to recently provide a copy of my
undergraduate transcript! From 20+ years ago
! In another country!