My friend and fellow Raleighite David Simonton has an exceptionally thoughtful piece on his major photographic influences, published on the oneonethousand blog.
David is very forthright in this essay, noting, with examples, the work of Harry Callahan (who ended his career with work in Atlanta), Peter Simon, Sylvia Plachy, Paul Caponigro, and Joel Meyerowitz, and especially their sense of light and place.
One nice this about David's essay is that it has numerous examples fron each of his photographic influences, concluding with some of David's own work. One can watch, as one works through this piece, the development of David's personal transformation of all these influences into his own style and sense of vision.
You can find more of David's work on his website, here.