It looks as though he passed away in Lemoore, Kings County, CA. The county would most likely have an obituary, but they do charge some ridiculous amount for a copy. You would need to call their County Clerk's Office.
Now that you have the date, the Hanford, Kings County, CA. LDS Family History Center does keep a stash of old newspapers. They are open on Thursdays at 9 a.m. 559-582-8960.