Education
Born in Mishicot, Wisconsin, Jonas attended the public schools and graduated from the Manitowoc County Normal School. He was graduated from the University of Chicago Law School in June 1910.
United States representative lawyer politician
Born in Mishicot, Wisconsin, Jonas attended the public schools and graduated from the Manitowoc County Normal School. He was graduated from the University of Chicago Law School in June 1910.
He taught in the rural schools of Manitowoc County 1903-1907. He was admitted to the bar in 1909 and commenced the practice of law in Chicago, Illinois. He served as assistant corporation counsel of Chicago, Illinois, in 1919 and 1920.
First assistant State"s attorney of Cook County, Illinois from 1921 to 1923.
He served as a judge of the Municipal Court of Chicago 1923-1937. He served as a judge of the Superior Court of Cook County in 1941 and 1942.
He served as a delegate to the Republican National Convention in 1948. Jonas was elected as a Republican to the Eighty-first, Eighty-second, and Eighty-third Congresses (January 3, 1949 – January 3, 1955).
He was an unsuccessful candidate for reelection in 1954 to the Eighty-fourth Congress and for election in 1956 to the Eighty-fifth Congress.
He resumed the practice of law and was a resident of Chicago, Illinois. He died in Evanston, Illinois, November 14, 1965. He was interred in Rosehill Cemetery in Chicago.
He served as an associate member of Board of Pardons and Paroles of Illinois 1945-1947.