I think I know the answer but thought I'd put it out here for the experts to decide.
The blades on the two larger saws are pretty straight, the bottom one being nearly perfect which is a bit better than the other.
IMG_20150904_182755844.jpg
The saw on the bottom is the one I'm most curious about. It has pretty significant water damage and I can't find any etching on the blade. Here a closeup of the handle and nut after a light brushing with a brass brush.
IMG_20150904_183602413.jpg IMG_20150904_190107.jpg
Below is the middle saw and I'm guessing it's just a modern version of an old saw (the handle is laminated).
IMG_20150904_183114077.jpg
There's not much on the small saw I can see except some circular text that looks like it would have read 'Crosscut Saw' and the fact that all of the nuts have been replaced. Probably a generic brand but I know nothing about saws sooooo.
Thanks in advance guys.