John Henry "Jack" "Doc" Bradley (July 10, 1923 – January 11, 1994) was a United States Navy corpsman during World War II. He partook twice in raising the Flag on Iwo Jima. He helped secure the flagstaff in the soft ground for the first American flag raised and helped five Marines raise the second larger replacement American flag with a longer and heavier flagstaff on top of Mount Suribachi on February 23, 1945. He was the last surviving member of the second flag-raising.