I have a photograph of the Enola Gay (taken 3 days after the mission) signed by Paul Tibbets and Theodore Van Kirk, and it is my most prized possession (that and my Harley).
I met Paul Tibbets at a event scheduled up near Omaha in the Air and Space Museum. He got up and spoke to about 200 of us. He never really got into the whole "I dropped the bomb on Hiroshima" thing. He talked for about 1/2 hour. He signed for me a book he wrote. I remember going home and telling me wife it was like listening to your grandfather. It was great.
I won't ever forget him or the other heroes from that part of our history. To this day, it still fascinates me and I only wonder if I, we, could ever make those same sacrifices that those brave men did this more than 60 years ago.
God bless them all.