Career
He was born on a farm near Sheshequin, Pennsylvania. He attended Susquehanna Collegiate Institute in Towanda, Pennsylvania. He was engaged in agricultural pursuits, clerked in a general store and became a dealer of automobiles in 1913. Gillette was elected as a Republican to the 77th Congress to fill the vacancy caused by the death of Albert G. Rutherford, and was reelected to the Seventy-eighth and to the four succeeding Congresses and served from November 4, 1941, until his death in Towanda, Pennsylvania.