Nathaniel Kellogg "N.K." Fairbank (1829–1903) was a Chicago industrialist whose company, the N.K. Fairbank Co., manufactured soap as well as animal and baking products in conjunction with the major meat packing houses of northern Illinois. The company had factories in Chicago, St. Louis, Montreal and Louisiana and had international offices in the United Kingdom and Germany. Gold Dust Washing Powder (featuring the Gold Dust Twins and distributed by Lever Brothers), was one of the most successful cleansing product lines in twentieth century North America. Another original Fairbank creation, Fairy Soap, was purchased by Procter & Gamble and remains one of the best-known European household brands.