Complex sentence: Andrew Gregg Curtin (April 22,1817--October 7,1894) was a U.S. lawyer and politician who served as the 15th Governor of Pennsylvania during the American Civil War.
Split into simpler sentences: Andrew Gregg Curtin (April 22,1817--October 7,1894) was a U.S. lawyer and politician. He served as the 15th Governor of Pennsylvania during the American Civil War.