Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Henry G. Marsh - Henry G. Marsh (October 11 1921 May 11 2011) was a Democratic politician from Michigan who served as Mayor of Saginaw and was the first African-American to hold that office. Marsh was one of the first black mayors in the United States.
A:
Office Holder