Philadelphia, PA, United States
Robert Patterson (1743-1824). Professor, chair of mathematics dept. and vice-provost at University of Pennsylvania, 1799-1814. Tutored Meriwether Lewis in navigation skills to prepare for Lewis and Clark Expedition, 1803-1806. Resided here.
Listen to the audio guide for Robert Patterson blue plaque Free on WIP — starts by itself when you arrive, even with the screen off