Catalpa, also known as Wallace Farm, is a historic farm located southeast of Greenfield, Iowa, United States. It is associated with Henry Cantwell Wallace, who owned and operated the influential agricultural publication Wallace's Farmer, and served as U.S. Secretary of Agriculture (1921-1924). It is also associated with his son Henry Agard Wallace, who followed his father at the newspaper and served as U.S. Secretary of Agriculture (1933-1940), Vice President of the United States (1941-1945) and U.S. Secretary of Commerce (1945-1946). He was the Progressive Party candidate for president in 1948. This was one of several farms owned by the Rev. Henry Wallace, Henry Cantwell's father. It was acquired by the family in 1877, and it was operated by a tenant farmer until Henry Cantwell took it ov