Bio De Casseres

Bio De Casseres (née Adella Mary Terrill; May 4, 1875 – February 15, 1964) was an American author.

Early life She was born in Lake Crystal or Blue Earth Reservation in Minnesota. De Casseres's grandparents (via her mother Mary F. Mack) were Stephen Mack Jr., an early Euro-American settler in Illinois, and a Potawatomi chief's daughter named Ho-no-ne-gah. Bio (the indigenous name she preferred to be called) was educated in Mankato before traveling to Pueblo with her sister Sadie to help their stepsister Matilda Provost. In Colorado she met her first husband with whom she lived in Tonopah. While accompanying her husband Harry Jones on a business trip to New York, she met journalist Benjamin De Casseres. For fourteen years they sent love letters back and forth without seeing one another. Eventually the letters affected her marriage and she divorced her husband in 1919. In 1928 she helped O'Neil when he was depressed over his divorce. O'Neill asked De Casseres to "conduct a long-distance reading of his palm." De Casseres was a patron of writer and artist Clark Ashton Smith, buying drawings from him in 1934.

Personal life After her husband died, she moved to Tucson in 1946. In her will she gifted all their possessions to the Rockton Township Historical Society for "the use and benefit of the Ho-no-ne-gah and Stephen Mack Museum."