Graham Paper Company, formerly known as H. B. Graham and Brothers and originally known as H. B. Graham, was a privately owned American printer, manufacturer, and distributor of paper products. It is the oldest paper company in the United States west of the Mississippi River. By the 1960s, Graham Paper was the largest wholesaler of paper in the United States. At its height, the company had 27 distribution centers throughout the country, including in every major city. The company sold stationery, paperboard, newsprint sheets, spools of twine, machine-finished coated papers, wood-free uncoated papers, coated fine papers, and special fine papers. Major clients included national and regional newspaper companies, book publishers, boards of education, and state governments.