House built circa 1810 by Samuel Shrewsbury (1763-1855) on a 704 acre tract of land received from Colonel John Dickinson. Sandstone and hewn hardwood logs used in construction were obtained locally from the land. Shrewsbury, a revolutionary soldie…
At this site, April 1926, E. I. DuPont de Nemours and Co. produced first successful, commercially synthesized ammonia from air and water. This initiated a progression of synthetic products: methyl alcohol, antifreeze, nitrates for explosives and f…