Complex sentence: In 1970 Snell became the MMTB's Deputy Chairman under Francis Kirby, he succeeded Kirby as Chairman in 1976 for a five-year term, which was renewed in 1981.
Split into simpler sentences: In 1970 Snell became the MMTB's Deputy Chairman under Francis Kirby. He succeeded Kirby as Chairman in 1976 for a five-year term, which was renewed in 1981.