This is a woolen mill founded by John Rich in Plum Run, Pennsylvania, in 1830 and later moved to Woolrich, Pennsylvania, in 1845. The company has a rich history from supplying blankets to the Union Army during the Civil War (1861-1865) to servicing soldiers during World War I (1914-1918) with blankets, coats, and stockings, and again during World War II (1942-1945).
Historical Dictionary of the Fashion Industry. Francesca Sterlacci and Joanne Arbuckle.