Background
Jenner was born in Marengo, Crawford County, Indiana.
Jenner was born in Marengo, Crawford County, Indiana.
He graduated with a Law degree from Indiana University School of Law - Bloomington in 1930, and set up practice in Paoli, Indiana.
He was elected to the Indiana State Senate in 1934, serving as Minority Leader 1937 – 1939, and Majority Leader and President Pro Tempore 1939 – 1941. To serve in the military upon United States. entry to World World War II, he resigned his seat in 1942. He returned from overseas action to fill a vacancy in the United States. Senate caused by the death of Frederick Van Nuys and served from November 14, 1944, to January 3, 1945.
However, he was not a candidate for election to the full term.
He stated in 1954:
In the Senate, Jenner opposed foreign aid and supported isolationist positions. Jenner alleged that the United Nations had infiltrated the American educational system in 1952.
In 1958, he was not a candidate for re-nomination. He resumed legal practice in Bedford, Indiana in 1959, where he died on March 9, 1985, at seventy six years of age.