Primarily presented by Mrs. Rhoda Owen Otto, October 6, 1964. Xerox copies of three letters from Otto to Walter L. Rankin of Carroll College (September 27, 1904, April 16, 1905, July 16, 1908) and one letter from Otto to Alfred S. Badger, a Carroll College trustee (September 30, 1905) were received from the Carroll College Library in 1974 and were interfiled in the correspondence. An annotated draft of Otto's autobiography was loaned for Xeroxing by Peter Odegard, Hudson, Wisconsin, in 1974 and the copy was added to Box 12. Accession Number: M74-359, M74-382, M74-544
