Please answer the following question: Hugh Powell Crosby (January 29 1829 - January 8 1905) was an Ontario political figure. He represented York East in the Legislative Assembly of Ontario as a Liberal member from 1867 to 1874.He was born in Markham in Upper Canada in 1829 to Chauncey Crosby and Polly Detweiler (Miller) Crosby and educated there. He served as clerk and treasurer of Markham for 10 years. He was also captain in the local militia. He married Harriet N. White (1934 - 1908). 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?
A:
Office Holder