Owen, Robert L. (Robert Latham), 1856-1947. "Ex-Senator Robert L. Owen Honored on 90th Birthday" Tulsa Daily World, Box 1, Folder 7, Item 9,
Robert L. Owen Collection, 1913-1946.
Carl Albert Congressional Research and Studies Center.
https://fraser.stlouisfed.org/archival/5300/item/535498, accessed on January 25, 2026.