American Glass Factories:
The Crystal Glass Co., Pittsburgh Pa 1868-1909
Dalzell Brothers & Gilmoure, Brillaint, Ohio 1883-1888
Dalzell, Gilmoure & Leighton Co., Findlay Ohio 1889-1898
Dithridge & Company, Martins Ferry, Ohio 1881-1902
Doyle & Co., Pittsburgh PA 1861-1891
The Dugan Glass Co., Indiana PA 1892-1893
George Duncan & Sons, Pittsburgh PA 1874-1881
George A. Duncan & Sons, Pittsburgh PA 1881-1891
George Duncan's Son's, Washington PA 1895-1910
Duncan & Heisey Company, Pittsburgh PA 1882-1891
Duncan & Miller Glass Co., Pittsburgh PA 1887-1891
The Elson Glass Co., Bellaire, Ohio 1882-1898
The Fenton Art Glass Co.,Martins Ferry Ohio 1906- present
The Findlay Art Glass Co., Findlay Ohio 1888-1891
The Fostoria Glass Company, Fostoria Ohio 1887-
The Franklin Flint Glass Co., Philadelphia PA 1861-1863
Gillinder & Bennett Co., Philadelphia PA 1863-1867
Gillinder & Sons Co., Philadelphia PA 1867-1871
Gillinder Bros, Inc., Port Jervis N.Y. 1872-
The Greensburg Glass Co., Greensburg PA 1889-1899
The A.H. Heisey Glass Co., Newark Ohio 1893-1953
The Hemingray Glass Co., Cincinnati Ohio & Covington Kentucky 1848-1882
Hipkins Novelty Mold Shop, Bellaire Ohio & Martins Ferry Ohio 1866-1872
Hobbs, Brockunier & Co. Wheeling West VA 1863-1891
The Huntington Glass Co., Huntington W .VA 1891-1893
The Imperial Glass Co., Bellaire Ohio 1901-
The Indiana Glass Co., Dunkirk, Indiana 1897-1898
The Indiana Glass Co., Dunkirk Indiana 1908-
The Indiana Tumbler & Goblet Co., Greentown Indiana 1894-1899
The Jefferson Glass Co., Steubenville Ohio 1901-1907
, Follansbee Ohio 1907-1913
, Toronto Ontario 1913-1935
The King Glass Co., Pittsburgh PA 1880-1891
The Kokamo Glass Co., Kokamo Indiana 1900-1905
D.C. Jenkins Glass Co., Kokamo Indiana 1906-
