Lee is, of course, correct. The Amon Carter actually holds all of Porters negatives and is a repository of his lifes work. Had the chance to hear him speak a few years ago, just prior to his passing. Seems like one of the magazines recently did an article of Porters B&W work and how it has become forgotten. For some reason his work is under valued, maybe because of the color work..I'm not sure. If you ever have a chance to see his work though, be sure and go..it is really worth seeing.