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First Name: Karl

Last Name: Day

Birthplace: Ripley County, IN, USA

Gender: Male

Branch: Marines (present)

Middle Name: S.

Date of Birth: 30 May 1896

Date of Death: 19 January 1973

Rank: Lieutenant General

Years Served:
Karl S. Day

•  World War I (1914 - 1918)
•  World War II (1941 - 1945)


Karl S. Day
Lieutenant General, U.S. Marine Corps

Karl S. Day was born on 30 May 1896 in Ripley County, IN. He graduated from Ohio State University in 1917. 

Day joined the U.S. Marine Corps Reserves in 1917 and, after being designated a Naval Aviator, he flew combat missions in World War I for which he earned the Navy Cross. After WWI he joined American Airlines as an instrument pilot instructor.

He was recalled to active duty in 1940 and was assigned to Admiral William E. Halsey's staff, later becoming Base Commander on Peleliu Island in the West Carolines. He also flew combat missions in the Pacific during World War II. Day was credited with pioneering advanced and innovations in Navy and Marine Corps aviation in instrument flying and radio navigation.

From 1954 to 1957, he was the Marine Corps member of the Reserve Forces Policy Board.

He retired from active duty in 1957 with the rank of Lieutenant General.

In Retirement

He continued to work for American Airlines until 1962. At the time of his retirement from American, he was Director of Flight Dispatch.


He was the author of "Instrument of Radio Flying," published in 1938.

Death and Burial

Lieutenant General Karl S. Day died on 19 January 1973 in Nassau Hospital in Mineola, NY. He was 76 years old. He is buried at Arlington National Cemetery in Arlington, VA.

Surviving are his widow, Margaret R., a son, John F., a daughter, Mrs. Nancy Trowern, and seven grandchildren.


Honoree ID: 2414   Created by: MHOH




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