Complex sentence: Tilghman returned to private practice in Philadelphia from 1802 to 1805, and then became President Judge of the Court of Common Pleas of Philadelphia in 1805, and a judge of the Pennsylvania High Court of Errors and Appeals until 1806.
Split into simpler sentences: Tilghman returned to private practice in Philadelphia from 1802 to 1805. He was appointed as President Judge of the Court of Common Pleas of Philadelphia in 1805, and a judge of the Pennsylvania High Court of Errors and Appeals until 1806.