Born on April 2, 1745, in
Cecil County,
Province of Maryland,
British America, Bassett pursued preparatory studies, then
read law. By concentrating on agricultural pursuits as well as religious and charitable concerns, he quickly established himself amongst the local gentry and "developed a reputation for hospitality and philanthropy." He was a member of the Delaware constitutional conventions of 1776 and 1792. Due to his name coming first alphabetically out of all 20 senators who commenced their first term on 4 March 1789, Bassett is
the most senior senator to have served in the United States Senate. Bassett was chief justice of the Delaware Court of Common Pleas from 1793 to 1799. He was governor of Delaware from 1799 to 1801. Bassett was nominated by President
John Adams on February 18, 1801, to the
United States Circuit Court for the Third Circuit, to a new seat authorized by 2 Stat. 89. He was confirmed by the United States Senate on February 20, 1801, and received his commission the same day. His service terminated on July 1, 1802, due to abolition of the court. ==Later life and death==