Black and white photo image of the Portsmouth Solvey and Coke Company, Portsmouth, Ohio. The 1918 Portsmouth City Directory lists: The Portsmouth Solvay Coke company, M.K. Hitchcock, Traffic Manager, 42-43 First National Bank Building. On June 1, 1917, the Turkey Gap Coal and Coke Company was purchased by the Portsmouth Solvay Coke Company to supply the ovens at its new by-product coking plant at Portsmouth. The Freeburn mine in Pike County Kentucky furnished high-grade by-product coal to the coke ovens at Portsmouth. In 1921 the American Rolling Mill Company and the Whitaker-Glessner Company jointly acquired all the capital stock of the Portsmouth Solvay Company and changed the name to the Portsmouth By-Product Coke Company.