The longer ones (bottom image) are stickbaits, as you say. The shorter, fatter ones (top image) are generally referred to as crankbaits. Those are a nice collection of both and that's a great gift.
Not surprising these came from a Champlain angler. I'm with you that these were probably used for walleye trolling, almost certainly the deep-diving stickbaits as that's a very common lure and technique. The crankbaits may have also been used for walleye but more likely deepwater bass, in my humble opinion. Doesn't really matter, I'm sure walleye and smallmouths share the same habitat in Champlain and both can be caught on either lure, trolling or casting.