Education
Born in Tönder, (which was then a part of Schleswig, Germany but is now in Denmark), Jacobsen attended the public schools.
United States representative politician
Born in Tönder, (which was then a part of Schleswig, Germany but is now in Denmark), Jacobsen attended the public schools.
He was the father of William South. Jacobsen, who succeeded him in Congress following his death. He learned to speak English while serving as a helper in a Clinton sawmill. He was employed as a clerk in a dry goods store until 1886, when he engaged in the mercantile business.
He served as postmaster of Clinton 1914–1923.
He retired from the mercantile business in 1927 and engaged in the industrial finance business. In 1930, Jacobsen was elected as a Democrat to represent Iowa"s 2nd congressional district, unseating incumbent Republican Congressman F. Dickinson Letts.
He was the first Democrat elected to the United States. House of Representatives from Iowa since 1916. Jacobsen"s defeat of Letts was particularly embarrassing for President Hoover, as the district included the President"s home in West Branch, Cedar County.
However, he died on June 30, 1936 in Rochester, Minnesota, after ten days of hospitalization.
He was interred in Springdale Cemetery, Clinton, Iowa.