BETTE NESMITH GRAHAM (March 23, 1924–May 12, 1980) was the inventor and businesswoman who made a fortune from her invention “Liquid Paper,” a product which along with its competitors such as WiteOut, allowed secretaries to quickly correct typing mistakes.
Bette Nesmith put some tempera water-based paint, colored to match the stationery she used, into a bottle and took her watercolor brush to the office. She used this to surreptitiously correct her typing mistakes,