You posted in January, same person, Eellitta posted an answer identifying no online obit found. I also checked the online systems, the major area paper would be the Oregonian, or the local Oregon City.
The Social Security Death Index:
Joseph Ivan Hewitt, born 26 Jan 1928, died 10 Oct 2010, "last residence" Oregon City, Clackmas County, OR. His SSN had been issued in Illinois before 1951.
I checked your family tree under your other name, but did not see this person attached.
Since most of your postings are requesting obituaries, and if the source of your death information is just the SSDI, you need to know:
The "last residence" on the SSDI is NOT necessarily where a person actually lived or died. The Social Security Administration calls it simply the "home of record," and possibly the address where correspondence by the SSA was sent. It is not necessarily where any benefit was paid to the person, survivor, or the lumpsum death benefit (in years past, it was paid to anyone paying burial expenses, family member, funeral home, city/county, attorney; today, a living spouse). It is sometimes the location where the notification of death was sent to the SSA, sometimes where the lump sum death benefit was sent.
This person was about 82, many persons that old don't have obits published for many reasons. If the SSDI info is only about an address of correspondence, that could be to a family member versus his address. Elderly sometimes request no obits, no service, family members don't publish for one reason or another. His length of residence in an area, his health/long term problems, no family/friends in an area, etc.