Sprague was elected as a Federalist Party to the 5th United States Congress to fill the vacancy caused by the resignation of Jeremiah Smith, serving from December 15, 1797, to March 3, 1799.
Sprague was appointed as a Federalist Party member for the 5th U.S. Congress to fill the vacancy left by Jeremiah Smith's resignation. He served from December 15, 1797, through March 3, 1799.