For an obit: The family lived in Wendell, Gooding County in the 1920 Census. They may have moved to Jerome, a larger town by her death. Obits were not that common in 1922. Families did not wish to pay for one, sometimes because they had not been in an area long such as in this case. Or, the person was elderly and had few friends or family that would have known of her death anyway. Another factor was the newspaper, was there one in Jerome in 1922.
Jerome is a small town today. It had a newspaper, North Side News, but it went out of business August 2008.
You probably have this information:
From other family trees posted: Cora Cordley (Carrie) Rhines, born 24 March 1879, daughter of William Carter Rhines and Elizabeth C. Brookman. One person identifies her birth as Missouri City, Fort Bend, Texas, unknown if accurate. None of the trees had a copy of an obit.
She is buried here:http://files.usgwarchives.net/id/jerome/cemeteries/jercem/jr...
Use their contact above to ask for research help. If there was a newspaper in Jerome in 1922, they "should" have a microfilm.