army officers standing in front of aircraft, us general william 'billy' mitchell , mitchell w/ general john j. 'blackjack' pershing . project b: vs... - 1936 1860 stock videos & royalty-free footage00:201921: POSTWAR AVIATION: BEHIND US Army officers standing in front of aircraft, MS US General William 'Billy' Mitchell (1879-1936), Mitchell w/ General John J. 'Blackjack' Pershing (1860-1948). PROJECT B: VS Captured ship being bombed.