The first tree is one of the red oaks! Either red or scarlet, I'm not sure. Any of the oaks that have "pins" at the end of its lobes are of the red oak variety. The white oaks have rounded lobes with no pins. Most oaks are divided into red or white oaks with many varieties of each.
I'm not takt familiar with elms but it looks like red. If it has corky wings on the small branches it is winged elm. Lots of that in and around the Atlanta area.