Complex sentence: A prominent businessman in Muskogee, Oklahoma, he helped the city to grow in importance and represented it as a delegate in both the Oklahoma convention and an earlier convention that was a failed attempt to create a U.S. state of Sequoyah.
Split into simpler sentences: A prominent businessman in Muskogee, Oklahoma, he helped the city to grow in importance. He represented the city as a delegate in both the Oklahoma convention and an earlier convention that was a failed attempt to create a U.S. state of Sequoyah.