Party affiliation: Republican Party
- In November of 1857, Osborn moved to Lawrence, Kansas where he became a compositor for the Herald of Freedom. The following year, Osborn was practicing law in Elwood, Kansas and was known to be a Republican and Free-State supporter. He was elected to the state senate in December, 1859. He became president of the senate in 1961 and presided over impeachment proceedings of the governor. Osborn was appointed U. S. Marshall and held that post from 1865 to 1867. Elected in 1872, and reelected in 1874, he was Governor of Kansas from 1873 to 1877.Osborn was Minister to Chili from 1877 to 1881 and Minister to Brazil from 1881 to 1885.
Born October 26, 1836
Died February 4, 1898