Holyoke Foundry Company was the maker of gray iron castings.
Sanborn 1884 map – called Dean Steam Pump Company Iron Foundry
Sanborn 1889 map – called Dean Steam Pump Company Iron Foundry
Sanborn 1895 map – called Watson, Ely, & Son, Planing and Saw Mill
Sanborn 1915 map – called the Ely Lumber Co
Sanborn 1949 map – no structures there