"Raising the Sower (1930)". Nebraska State Historical Society. April 24, 1930. Archived from the original on December 22, 2021. Retrieved June 24, 2014.
Johnson, George E. "Program and Commission Statement". Nebraska State Capitol. Nebraska Capitol Commission, State of Nebraska. Retrieved December 21, 2015.
"Raising the Sower (1930)". Nebraska State Historical Society. April 24, 1930. Archived from the original on December 22, 2021. Retrieved June 24, 2014.