General John J. Pershing GCB, Commander American Expeditionary Forces World War One: Cast Iron Bust Money Box.American General Pershing Bust Cast Iron Money Box, circa 1919 1920. These were painted by disabled and injured serviceman in convalescant homes. General of the Armies John Joseph Pershing (1860 1948), known as 'Black Jack', was Commander of the American Expeditionary Forces (AEF) during World War One. He resisted pressure for his forces to be integrated within the British and French armies and retained the AEF as a single unit under his command. He