Cudie was born about 1871. (1910 census) In the 1930 and 1940 censuses, her son Russius stated that she was born in Wisconsin.
Her Hocąk clan name was ChayChoNeWinKah, which is for Cecōnį́wįga, "First Buffalo Woman," a Buffalo Clan name. It is from ce, "buffalo"; cōnį́, "first, foremost,"; -wį-, a feminine gender infix; and -ga, a definite article suffix used in personal names.
In the 1910 census her name is given as "Cudie Day". "Day" is the Hocąk name Hąpka.
She was still alive as of the 1 April 1931 census.
1905 Indian census; Roll: M595_671; Line: 4. Indian Census Rolls, 1885-1940; (National Archives Microfilm Publication M595, 692 rolls); Records of the Bureau of Indian Affairs, Record Group 75; National Archives, Washington, D.C.