FOUND magazine editor Jason Bitner has made it a habit of picking up after us, walking down the back alleys of our lives, and accumulating all that we've thrown away or mislaid. One afternoon not long ago, after lunch at a small Midwestern diner, he stumbled onto a forgotten archive. In the back of the restaurant were box upon box of studio portraits of the townspeople of LaPorte, Indianaover 18,000 in total. Taken over four decades, the...