J. L. Clark Co.

Source: Rockford Morning Star 5/29/1960


J. L. Clark Celebrates 100 Years – 2004

Source: Rockford Register Star Nov. 8, 2004

Clark, J.L., Inc.

plastic manufacturers: plastic pipes, and pipe fitting (2007) a division of CLARCOR 923 – 23rd Ave., Rockford, IL 61104

photo of John L. Clark and also of wife. Renamed CLARCOR in 1987. Filtration, Packaging, Precision Products and Services Group. US patent 1900 for Gem Flue Stopper, by 1919 sold 10 million flue stoppers. 1903: patents on Crispy Toaster, Gem Flour Sifter. 1903: contracted for old Knowlton plant in Rockford’s water power district. 1904 moved to 714 Race St.

Source: From Hardware Store to Clarcor 1904-1989 R338.76 F931