They all seem to have cosmetic problems of some kind,mainly the wood on most of them.
#1 is built on a P14 or M17 action. I'd say $250 or so
#2 is an economy version of a Marlin. $250 or so
#3 reciever looks cloudy. As long as unfired,and has box with tags,sleeve etc,$500 or so. If it's a MP serial numbered one,it's worth a bit more. If it's been fired value is $300 or less.
#4 probably best of the bunch condition wise. $375 or so
#5 forend does'nt look to match butt stock. If pre 1964 version $400 or so
#6 deluxe wood,but no rib. $200 or so