Q:Ignacy Nurkiewicz (1887 - September 16 1972) was a Polish engineer as well as two-time president and one of the founders of the Józef Piłsudski Institute of America. 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