Jefferson G. Thurber was a Democratic politician from Michigan who served in both houses of the Michigan Legislature.Thurber represented Monroe County in the Michigan House of Representatives and the Senate between 1844 and 1852 and was the Speaker of the House during the 16th Legislatuare. He was also a delegate to the 1856 Democratic National Convention which nominated James Buchanan over the incumbent President Franklin Pierce. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
Office Holder