He commanded the United States Atlantic Fleet during World War II and was a recipient of the Medal of Honor for his actions in 1914 in Veracruz, Mexico.

As a lieutenant, Ingram was named the 15th head football coach of the United States Naval Academy and he held that position for two seasons, from 1915 until 1916, compiling a record of 9–8–2.

On April 22, 1914, he landed at Veracruz, Mexico with the Arkansas battalion and was later awarded the Medal of Honor for "distinguished conduct in battle" and "skillful and efficient handling of the artillery and machine guns".

During World War I, Ingram was awarded the Navy Cross for his services on the staff of Rear Admiral Hugh Rodman, Commander, Division Nine, Battle Force, Atlantic Fleet.

Ingram moved on to command the battleship USS Pennsylvania (BB-38) for a period of time after that, before serving as Officer-in-Charge of the Public Relations Branch.

Ingram's command included air and surface units of Brazil which were brought to a high state of efficiency through his leadership and coordinating efforts.

The ability to develop and maintain harmony and close cooperation with Brazilian naval forces contributed to the control of the South Atlantic achieved by the Allies.

He assumed personal responsibility for properly equipping and training the Brazilian Navy and for their combat operations against U-Boats and German raiders and later for the important task of maintaining the air and sea rescue patrol for ultimate deployment in the Pacific.

In this command he played a major role in assuring the steady flow of troops and materials to Europe across the Atlantic during the later phases of World War II.