The Social Security Death Index identifies Seaside as the "last residence". The Social Security Death Index lists persons that have died whose deaths were reported to the Social Security Administration. The "last residence" is not necessarily where a person lived.It could be the address where the Death Benefit was sent, today about $255.00, to a spouse or other person that paid for burial, funeral home/Attorney/etc.It also could be just from a notification of their death.It is not necessarily where they lived, it "usually is; but it is NOT a exact address identifier.A death certificate may have been sent to the Social Security Administration identifying the person died. The "last benefit" is sometimes the location where the Death Benefit was sent, not a Social Security payment, or again, where the person lived.
I looked in the online obituaries published in "The Oregonian", without success.
I looked in the "Seaside Signal" http://www.seasidesignal.com/http://www.seasidesignal.com/ without success, but they "might" respond to a request.
The "Daily Astorian" http://www.dailyastorian.com/http://www.dailyastorian.com/ -They have an Obituary Information Form..but it is to write one.They do have an archive search for the Daily Astorian, East Oregonian, Blue Mountain Eagle, Capital Press, Chinook Observer and the Wallowa County Chieftain.I search for ANY Carmichael, 128 were found, but didn't go back to 1999.They may assist in finding one published.