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This small collection of John W. Macklem (1867-1948) contains photographs of structures in the Hagley Yards after they closed in 1921, DuPont Company office staff in Equitable Building, Wilmington, Delaware, and gunpowder labels for A.F. & Co. FF gunpowder and DuPont superfine HFg gun powder.
John W. Macklem (1867-1948) began working for E.I. du Pont de Nemours & Company as an errand boy at a young age and remained with the company his entire career. E.I. du Pont de Nemours & Company is a chemical company more commonly referred to as the DuPont company. This collection comprises photographs of buildings and scenes in DuPont Company explosives manufacturing plants along the Brandywine Creek near Wilmington, Delaware, including the Eleutherian Mills (or Upper) yard, the Upper Hagley yard, and the Lower Hagley yard.