Thatcher was developed by the USDA and the Minnesota Agricultural Experiment Station with Marquis as a parent. It was distributed in 1934 and proved very resistant to stem rust in the severe epidemics of this disease in 1935 and 1937. In 1939 it was grown on 5.5 million acres in the US – mostly in the Dakotas and Minnesota – and on nearly 9 million acres in Canada.
- Classification of Wheat Varieties Grown in the United States in 1939, USDA Technical Bulletin No. 795, June 1942