BG James Harbord, seen wearing the French helmet he preferred to the British. Prior to becoming the head of the AEF SoS, he led forces at Chateau Thierry and Belleau Wood, including all of the Marine units. After the war he became President of the RCA Corporation where he oversaw the creation of NBC, RKO Pictures, and the acquisition of Victor Records to create RCA-Victor.  (Image: Public Domain) 