Tychsen, Andrew Christian, born 27-06-1893, in Hoboken, New Jersey. During World War I, Tychsen enlisted as a private in the Minnesota National Guard in April 1914 and was assigned to Company A of the 1st Infantry Division . In this capacity, Tychsen served on Mexican border during the Pancho Villa Expedition. He rose to the rank of first sergeant and was posted to the First Reserve Officers Training Camp at Fort Snelling on 25-03-1917.
In August 1917, Tychsen was sent to France with the 88th Infantry Division under command of Major General Edward Hinkley Plummer and participated in the fighting near Belfort and Epinal. Tychsen was promoted to the rank of captain and Commanding Officer of Company C, 339th Machine Gun Battalion. Major General Edward Plummer was born on 24-09-1855 in Elkridge, Maryland and died 11-02-1927, age 71, in Pacific Grove, California He was buried at the Presidio of Monterey, California.
After his return to the States in 1919, Tychsen was commissioned as a captain in the Regular army and attended the United States Army Infantry School at Fort Benning in 1921. During 1921–1925, he served as Assistant Professor of Military Science and Tactics at University of Minnesota. Subsequently, he served as Professor of Military Science and Tactics at St. Thomas Military Academy until 1932, when he was transferred to Hawaii, where he served at Schofield Barracks with the 27th Infantry Regiment. On 01-8-1935 Tychsen was promoted to the rank of major and was detached to the Command and General Staff School at Fort Leavenworth, Kansas. He graduated there a year later and then was transferred to Jefferson Barracks in Missouri, where he served with the 6th Infantry Regiment . In 1938, Tychsen was transferred to the Camden, New Jersey, where he was appointed as an Executive officer of the Camden Military District. In this capacity, he was in command of Organized Reserves.
He spent some time as a battalion commander of the 1st Infantry Replacement Group, before took command of 399th Infantry Regiment, 100th Infantry Division.
The 100th Division had the next casualities during the Europian campaign: Days in Combat: 163, total battle casualties: 5,038, killed in action: 883, wounded in action: 3,539, missing in action: 483 and prisoners of war: 491.
He participated in the Battle of the Bulge , Rhineland Campaign and Central European Campaign. At the beginning of January 1945, Tychsen was appointed assistant division commander of the 100th Infantry Division, succeeding Brigadier General John S. Winn. He was promoted to the rank of Brigadier General on 12-04-1945. On August 22, Tychsen succeeded Major General Withers Alexander Burress
as division commander and served with the division until the end of January 1946, when the division was inactivated. Major General Withers Alexander Burress 13-06-1977, age 82, in Arlington County, Virginia.
Death and burial ground of Tychsen, Andrew Christian.During the Korean War, Tychsen was served as Chief of Staff of the IX Corps, under command of Major General Willard Gordon Wyman.
Brigadier General Tychsen retired from the Army on 30-06-1953. After retirement, he served on the United Nations Rehabilitation Commission for Korea and finally retired in 1958. Brigadier General Andrew Christian Tychsen died at the age of 93 on 03-07-1986. He is buried with his wife Lucile Conway who died age 87 on 29-03-1954, at Arlington National Cemeter, Section 59, Lot 523.