Hi Terry, Finding an obituary in San Bernardino County can be a BIG search. The San Bernardino Sun is the county-wide newspaper but some people didn't/don't put obituaries in that newspaper because of the cost.
The San Bernadino Valley Genealogical Society has some copies but I don't know if they have copies back to 1922 and 1924. You can contact them at firstname.lastname@example.org .
The Inland Library System for Inyo, Riverside and San Bernardino couties does provide obituaries. You will find their information at www.inlandlib.org/ .
There are many smaller newspapers the obituary can appear in but there is no central repository in the County. Some of them weren't microfilmed or saved.
I looked for Ethel's death date but didn't find it. Perhaps she re-married. I'd contact the San Bernardino Valley Genealogical Society and see if they have marriage records and if they don't, contact the San Bernardino County Recorder-Clerk, sbcounty.gov/arc/index2.html . Successful Searching!