Isaac Stephenson, U.S. Senator

https://en.wikipedia.org/wiki/Isaac_Stephenson

Isaac Stephenson, (brother of Samuel Merritt Stephenson), a Representative and a Senator from Wisconsin; born in Yorkton near Fredericton, in York County, New Brunswick, Canada, June 18, 1829; attended the common schools; settled in Marinette, Wis., in 1858 and engaged in the lumber business; held various local offices; member, Wisconsin State assembly 1866, 1868; founder and president of the Stephenson Banking Co. 1873; elected as a Republican to the Forty-eighth, Forty-ninth, and Fiftieth Congresses (March 4, 1883-March 3, 1889); was not a candidate for renomination in 1888; resumed the lumber business in Marinette, Wis.; elected in 1907 as a Republican to the United States Senate to fill the vacancy caused by the resignation of John C. Spooner; reelected in 1909 and served from May 17, 1907, to March 3, 1915; chairman, Committee on Expenditures in the Department of Agriculture (Sixty-first Congress), Committee on Enrolled Bills (Sixty-second Congress), Committee to Investigate Trespassers Upon Indian Lands (Sixty-third Congress); died in Marinette, Wis., on March 15, 1918; interment in Forest Home Cemetery.

http://bioguide.congress.gov/scripts/biodisplay.pl?index=S000863