James Wilson (1742-1798), appointed as a Supreme Court Justice by President George Washington in 1789, held the distinction of being one six of the Founding Fathers to sign both the Declaration of Independence and the Constitution.  James Wilson was very active in the Constitutional Convention, having spoken 168 times. He also, in 1790, became the first Law Professor of the University of Pennsylvania.

In the Pennsylvania Supreme Court records of Updegraph v. Commonwealth, 1824, Judge James Wilson is mentioned:

"The late Judge Wilson, of the Supreme Court of the United States, Professor of Law in the College in Philadelphia, was appointed in 1791, unanimously, by the House of Representatives of this state ....  He had just risen from his seat in the convention which formed the constitution of the United States, and of this state; and it is well known, that for our present form of government we are greatly indebted to his exertions and influence.  With his fresh recollections of both constitutions, in his Course of Lectures (3d vol. of his Works, 122), he states that .... Christianity is part of the common-Iaw." ¹

¹ Updegraph v. The Commonwealth, 11 Serg, & R. 393, 403 (1824).  David Barton, The Myth of Separation (Aledo, TX: Wall Builder Press, 1991), pp. 78-79.