Clement Clarke Moore
Clement Clarke Moore CC 1798 MA year? is best known for writing A Visit from St. Nicholas ("Twas the Night Before Christmas...")
The valedictorian of his undergrad class, Moore eventually became a professor of Oriental and Greek literature at the college, and a theologian at General Seminary. His father, Benjamin Moore, and his cousin, Nathaniel Fish Moore, were both alumni and Columbia College presidents.
His Manhattan estate was located in, and gave its name to, the current neighborhood of Chelsea. A Clement Clarke Moore park now exists there, in his honor.