Unknown. ca. 1925. “Mary Goodwin Lacy.” Special Collections, USDA National Agricultural Library. Accessed May 20, 2018, https://www.nal.usda.gov/exhibits/speccoll/items/show/1064.
Mary Goodwin Lacy has made at least two studies that are more exhaustive than any others made in their respective fields: A study and bibliography of the literature of maize and a study of Government food control and its results since 2800 B.C.