Here are a number of sites, resources that as an enthusiast, WW historian, serviceman or family member of the 12th Air Force you might enjoy and find relevant.
Army Air Corps Library and Museum History of the Army Air Forces of World War II.
12th Air Force History
US National Archives
Air Force Historical Research Agency
Sons of Liberty Museum US Army, US Marines, US Navy, US Air Force. World War I, World War II, Korea, Vietnam History. Military History. Veterans Stories.