Warwick immigrated with his brothers Robert and William to the United States about 1850 and resided in Philadelphia, Pennsylvania, for a short time.

[1][2] He defeated William McKinley by 302 votes in an intensely fought race that gained national attention.

[3] On August 2, 1892, Warwick attended a board of directors meeting for the Wheeling & Lake Erie Railroad Company in New York City.

[2] Warwick died on August 14, 1892, at Riggs House in Washington, D.C.[1][3] He was interred in Protestant Cemetery, Massillon, Ohio.

[1] This article incorporates public domain material from the Biographical Directory of the United States Congress