Complex sentence: Fitzpatrick served as the first Secretary-Treasurer of the MSA (1932--1935), as the fifth President of the MSA (1936), and as Historian of the MSA until his death.
Split into simpler sentences: Fitzpatrick served as the first Secretary-Treasurer of the MSA for four years and as the fifth President of the MSA in 1936. Additionally, he served as Historian of the MSA until his death.