المؤلفون: Pickering, Timothy, 1779-1807.

المساهمون: Pickering, Henry, 1781-1838, recipient., Pickering, Timothy, 1745-1829, recipient.

مصطلحات موضوعية: Harvard College (1780- ). Class of 1799., Harvard graduates' papers., Harvard students' letters.

Subject Person: Pickering family., Pickering, Timothy, 1779-1807., Pickering, Henry, 1781–1838.