Complex sentence: Simkins was an All-Southern fullback and punter for the "Iron Men" of the 1899 Sewanee Tigers football team that went undefeated and won 5 road games in 6 days all by shutout.
Split into simpler sentences: Simkins was an All-Southern fullback and punter of the Sewanee Tigers football team. He was a member of the 1899 "Iron Men" of Sewanee that went undefeated and won 5 road games in 6 days all by shutout.