Private practice, Reading, Pennsylvania, 1768-1770
Private practice, Carlisle, Pennsylvania, 1770-1774
Delegate, Continental Congress, 1774-1777, 1783, 1785-1787
Businessman, land speculator and legal advisor, Philadelphia, Pennsylvania, 1777-1787
Avocat g??ral for maritime and commercial causes, appointed by French government, 1779-1783
Delegate, Federal Constitutional Convention, 1787
Professor of law, College of Philadelphia, 1789
Drafter, Pennsylvania Constitution, 1790
Allotment as Circuit Justice:
Middle Circuit, Spring 1790-Spring 1792, Spring 1793, Spring 1794, Spring 1795-Fall 1796
Eastern Circuit, Fall 1792-Spring 1794
Southern Circuit, Fall 1794, Fall 1797