Arizona Pageant of Progress
Biographical material
Letter from Jay Datus to Mulford Winsor, November 12, 1941
Letter from Jay Datus to Mulford Winsor, September 13, 1939
Letter from Mulford Winsor to Jay Datus, November 6, 1941
Letter from Mulford Winsor to Jay Datus, September 9, 1939
Arizona Highways, 1944-09
Arizona State Library Newsletter, 1940-07