Owen, Robert L. (Robert Latham), 1856-1947. "One Language Suggested for Europe" Spartanburg Herald, Box 1, Folder 5, Item 27,
Robert L. Owen Collection, 1913-1946.
Carl Albert Congressional Research and Studies Center.
https://fraser.stlouisfed.org/archival/5300/item/535406, accessed on January 22, 2026.