Walker County was named after which member of the US Senate from Mississippi?
Walker County, Texas: Walker County is a county located in the east central section of the U.S. state of Texas. Walker County, Texas:  Initially, Walker County was named for Robert J. Walker, a legislator from Mississippi who introduced into the United States Congress the resolution to annex Texas. Robert J. Walker:  An active member of the Democratic Party, he served as a member of the U.S. Senate from Mississippi from 1835 until 1845, as Secretary of the Treasury from 1845 to 1849 during the administration of President James K. Polk, and briefly as Territorial Governor of Kansas in 1857.
Robert J. Walker