As I've posted in another thread, the Oswald Backyard photos went under rigorous forensic photo analysis just a few years ago and every photo was proven to be 100% authentic with absolutely no forgery. Forged photos from the 60's would be easy to identify, unlike from today, with the best computer technology that can alter photos making it more difficult to ascertain if they are indeed legitimate. Obviously Marina had to take them because Oswald wasn't really close to other people who would have taken them for him.