Plumer, Samuel F. - 1841

Chapter XI
The Furnaces-- List of Furnaces

7.  Clinton Furnace, 1841, on Hemlock Creek, in the extreme northwest corner of Washington township; owned first by Clapp and Seymour; afterward by Samuel F. Plumer, manager, William Hollis; nine and one-half feet across the bosh, thirty-three feet high; production, 1845, 1,000 tons; 1856, 2,000; forge metal, out of fossil buhr-stone and fossil limestone, lower coal measure ore, mined two miles south of the furnace.
~ History of Clarion County, Pennsylvania, 1887, Page 117