WALL OF HISTORY Retired Flight Officer Donald Jackson looks at photos from his former unit, the 477th Bombardment Group, during the Tuskegee Airmen's 40th national convention at Gaylord National Hotel in National Harbor, Md., Aug. 4, 2011. SHARE IMAGE: Download Image: Full Size (0.08 MB) Photo By: VIRIN: 694810-V-MOD40-213.jpg Photo Gallery