Hackenberg, Harvey Edward; manufacturer; born, Northumberland, Pa., March 8, 1864; son of Albert and Maria Brouse Hackenberg; public and high school education; married, Cleveland, June 18, 1903, Addie May Lawrence; one son, Edward Hackenberg, three years old; Republican in politics; 1881, clerk Tuttle, Masters & Co., iron ore merchants; 1883-1888, clerk The Bouton Carbon Co.; 1888-1899, sec’y The National Carbon Co. of Ohio; 1899-1911, treas. National Carbon Co. of Ohio and New Jersey; 1912, vice. pres., sec’y and treas. National Carbon Co. of New Jersey; sec’y, treas., vice pres. and director The National Carbon Co.; director, sec’y and treas. The Lakewood Mnfg. Co.; director and sec’y The Dow Chemical Co.; member Cleveland Engineering Society; member district committee, West Side Associated Charities; member Lakewood Baptist Church; trustee City Rescue Mission; member The Jovian Order, Cleveland Chamber of Commerce, and Board of Industry, and The Lakewood Chamber of Commerce, Union, Tippecanoe and Lakewood Tennis Clubs. Recreation: Tennis.