Could very well be beech. Especially with the flare at the base of the trunk we see on your 2nd pic. They look like an elephant's foot at the base. As Pat said, look at the buds. If beech they will be alternate, brown, slim, pointy and around 3/4'' long. Never did a bow of it myself, but Baker says its somewhat like maple. Should make a bow for sure.
Cheers!