As the title states, I'm looking for iconic photograph in which the subject is walking away from the camera. The time period or location do not matter. Anybody have any ideas?
Do you mean an important photograph? If so, then this one: http://iconicphotos.wordpress.com/2011/10/01/a-walk-to-the-paradise-garden/ . It's by W. Eugene Smith. The children in the picture aren't historically important, but the picture itself is renowned.
There's a famous photo of JFK and Eisenhower walking away from the camera that was taken at camp David, I think. Here's a copy of it: http://i2.wp.com/listverse.com/wp-content/uploads/2013/01/serious-steps.jpeg.jpg