sentences:  He was appointed by President Benjamin Harrison as consul general at Montreal in 1889, and remained on the post until September 1893, when he returned to Lowville and resumed the practice of law.He also engaged in banking.Knapp was elected as a Republican to the 57th Congress to fill the vacancy caused by the death of Albert D. Shaw, and was re-elected to the 58th, 59th, 60th and 61st United States Congresses, holding office from November 5, 1901, to March 3, 1911.