<p>William Swan Plumer (July 26, 1802 ? October 22, 1880) was an American clergyman, theologian and author who was recognized as an intellectual leader of the Presbyterian Church in the 1800s.<br><br>William S. Plumer was born to William and Catharine Plumer (née McAlester) in Greersburg, present day Darlington, Pennsylvania, on July 26, 1802. <br><br>He graduated from Washington College (now Washington and Lee University in Virginia) in 1825, re...