Apex,
Looks like you may actually have several different species going on there. Just a quick turn through my Trees of SE US, I can see how the second photo could be a Laurel Oak. These get pretty good size but will make acorns in their second year. First photo looks like something in the neighborhood of a Sand Live Oak, maybe a Myrtle Oak.
Based on the ecoregion of these particular trees, I would say that this area is moderatly coastal with regions of poorly drained soil, but this site is a lot sandier than others around it so remains a little drier.
Good looking area.
OkKeith