Correspondence; Government contracts; Gunpowder; Ordnance industry;
Washington sends a letter of recommendation to Alexander Spotswood of Kentucky for E. I. du Pont de Nemours or Peter Bauduy during their trip to Virginia and Kentucky in search of domestic saltpeter sources. Washington notes that du Pont is a...
Cartes de visite; Physicians; Military officers; Portrait photographs
Carte de visite from an album possibly assembled by Henry Algernon du Pont. Handwritten caption: "Dr. Hammond, U.S. Army" Hammond served at Surgeon General of the U.S. Army in 1862-63. He tried to implement numerous reforms of military medical...
Alexander Lyman Holley (1832-1882). Born in Connecticut, Alexamder Holley became a mechanical engineer of remarkable ability. Energetic, persistent, and inventive, he sought convenient means of doing work. He improved many kinds of machinery, but...