Cassallo Iron Company, Lawrence Co.
          See: Tremont Furnace, Lawrence Co.
Clara Furnace (ca.1872-   ), Lawrence Co.
Cossallo Rolling Mill (ca,1842-   ), Lawrence Co.
Cossallo Iron Company, Lawrence Co.
          See: Cossallo Rolling Mill (ca.1842-   ), Lawrence Co.
Crowther Iron Company, Lawrence Co.
          See: Clara Furnace (ca.1872-   ), Lawrence Co.
Etna Furnaces, Lawrence Co.
Etna Furnace No.1 (ca.1838-   ), Lawrence Co.
Etna Furnace No.2(ca.1868-   ), Lawrence Co.
Etna Iron Company, Lawrence Co.
          See: Etna Furnaces, Lawrence Co.
Etna Iron Works, Limited, Lawrence Co.
          See: Etna Furnaces, Lawrence Co.
Etna Iron Works Rolling Mill, Lawrence Co.
          See: Etna Furnaces, Lawrence Co.
Foltz's Furnace, Lawrence Co.
          See: Willieroy Furnace, Lawrence Co.
Fremont Furnace, Lawrence Co.
          See: Tremont Furnace, Lawrence Co.
Hope Furnace (ca.1845-1868), Lawrence Co.
Hope Furnace No.2 (ca.1868-1882), Lawrence Co.
Martha Furnace (ca.1844-1849), Lawrence Co.
          See also: Neshannock Furnace, Lawrence Co.
Mc Kinley Furnace, Lawrence Co.
          See: Tremont Furnace, Lawrence Co.
Myra Furnace (ca.1853-1870), Lawrence Co.
          See also: Hope Furnace, Lawrence Co.
Neshannock Furnace No.1 (ca.1850-1862), Lawrence Co.
          See also: Martha Furnace, Lawrence Co.
Neshannock Furnace No.2 (ca.1872-   ), Lawrence Co.
Neshannock Iron Company, Lawrence Co.
          See: Neshannock Furnace No.2 (ca.1872-   ), Lawrence Co.
New Castle Iron Works (ca.1873-   ), Lawrence Co.
New Wilmington Furnace, Lawrence Co.
          See: Tremont Furnace, Lawrence Co.
Newcastle Iron Company (ca.1873-   ), Lawrence Co.
Onondaga Furnace, Lawrence Co.
          See: Onondago Furnace (ca.1874-   ), Lawrence Co.
Onondaga Iron Company, Lawrence Co.
          See: Onondago Furnace  (ca.1874-   ), Lawrence Co.
Onondago Furnace (ca.1874-   ), Lawrence Co.
Onondago Iron Company, Lawrence Co.
          See: Onondago Furnace (ca.1874-   ), Lawrence Co.
Onondago Iron and Coal Company, Lawrence Co.
           See: Onondago Furnace (ca.1874-   ), Lawrence Co.
Onondago Rolling Mill, Lawrence Co.
           See: Onondago Furnace (ca.1874-   ), Lawrence Co.
Orazaba Iron Works, Lawrence Co.
           See: Sophia Furnace, Lawrence Co.
Orizaba Iron Works, Lawrence Co.
           See: Sophia Furnace, Lawrence Co.
Orizaba Rolling Mill (ca.1847-   ), Lawrence Co.
           See: Sophia Furnace, Lawrence Co.
Raney & Berger Furnace (ca. ?  ), Lawrence Co.
Reis Brothers Rolling Mill, Lawrence Co.
Rose Point Furnace, Lawrence Co.
              See: Hope Furnace, Lawrence Co.
Rosena Furnace (ca.1872-1880), Lawrence Co.
              See also: Little Pet Furnace, Lawrence Co.
                             Sophia Furnace, Lawrence Co.
                             Reis, Brown & Berger Company, Lawrence Co.
Rowena Furnace (ca.1872- ? ), Lawrence Co.
              See: Rosena Furnace, Lawrence Co.
Shenango Iron Works (ca.1863- ? ), Lawrence Co.
Shenango Rolling Mill (ca.1848- ? ), Lawrence Co.
           See: Little Pet Furnace, Lawrence Co.
                  Rosena Furnace, Lawrence Co.
                  Shenango Iron Works, Lawrence Co.
                  Sophia Furnace, Lawrence Co.
            See also: Reis, Brown & Berger Company, Lawrence Co.
Sophia Furnace (ca.1847- 1872), Lawrence Co.
           See also: Little Pet Furnace, Lawrence Co.
                          Reis, Brown & Berger Company, Lawrence Co.
                          Rosena Furnace, Lawrence Co.
                          Shenango Iron Works, Lawrence Co.
Sophia Furnace No. 2 (ca.1872-1875), Lawrence Co.
White's Furnace, Lawrence Co.
           See: Etna Furnace, Lawrence Co.
Willieroy Furnace (ca.1854-1874), Lawrence Co.
Wilmington Furnace, Lawrence Co.
           See: Tremont Furnace, Lawrence Co.
Wilroy Furnace, Lawrence Co.
           See: Willieroy Furnace, Lawrence Co.

(This Index Under construction)