After graduation from the U.S. Army Command and General Staff School on June 19, 1931, he served in the Panama Canal Department until 1933.
He commanded the regiment during Operation Torch, the invasion of North Africa in November 1942, and the subsequent occupation of French Morocco.
The division then screened the Allied advance along the Loire River Valley, and accepted the surrender of 20,000 German troops at Beaugency.
Throughout this period, from the time he assumed command of the 83rd Infantry Division, his ADC was Brigadier General Claude Birkett Ferenbaugh.
Major General Macon remained in command of the 83rd Infantry Division until 1946, when he became military attaché in the U.S. Embassy in Moscow, USSR.