Marvin Edward Kennebeck was born in 1901 at Carroll, Iowa, and graduated from high school there in 1918. He received his doctor of dental surgery degree from the University of Iowa in 1924.
Commissioned a first lieutenant in the Dental Officers Reserve Corps on Aug. 28, 1924, General Kennebeck was assigned to active duty as an assistant dental surgeon at Walter Reed General Hospital, Washington, D.C.
Entering the Dental School at Walter Reed General Hospital in August 1926, upon graduation the general was transferred to the medical Field Service School at Carlisle Barracks, Pa., from which he graduated in May 1927. General Kennebeck was then appointed dental surgeon at Schofield Barracks, Hawaii.
Becoming dental surgeon at Fort Hancock, N.J. in June 1930, five years later General Kennebeck was named assistant dental surgeon at Randolph Field, Texas. He remained at Randolph Field until March 1939 when he was ordered overseas as post dental surgeon, Fort Mills, Philippine Islands.
Returning to the United States in April 1941 the general was designated dental surgeon for the Field Artillery Replacement Training Center at Fort Bragg, N.C., remaining at the center until the following March when he was transferred to Kelly Field, Texas as post dental surgeon. Appointed dental surgeon for the Aviation Cadet Center at San Antonio, Texas in July 1942, in February 1944 he assumed that position with the Army Air Force Central Flying Training Command at Randolph Field, Texas.
Joining the Air Training Command in February 1942, General Kennebeck was assigned as dental surgeon at ATC headquarters Barksdale Field, La., becoming the dental surgeon for the Indoctrination Division of ATC at Lackland Air Force Base, San Antonio, Texas, in November 1947.
Going overseas in October 1949 the general assumed duty as chief of the dental service, U.S. Air Forces in Europe, with headquarters at Wiesbaden, Germany.
Returning to the United States, in April 1952 General Kennebeck was named assistant for dental services in the Office of the Surgeon General at Air Force headquarters, Washington, D.C.
(Up to date as of May 1957)