Jake KrullJacob J. "Jake" Krull Jr. was an American military officer and South Dakota politician. He served in the South Dakota Senate from 1973 to 1983 and was a Democrat.BackgroundBorn in Watertown, South Dakota, Krull served in the United States Army and the South Dakota National Guard. He graduated from Watertown [High School (South Dakota)|Watertown High School] in 1956 and from South [Dakota State University] in 1960. He worked in the insurance business. Krull died in Watertown, South Dakota.