The Washington State Library has a free research program where they will look for information in the archives, in this case the newspaper microfilm for an event, such as an obituary. They will look up to an hour and send you the results. Contact them at: http://www.secstate.wa.gov/library/ask.aspx . Depending on the amount of requests, it could take up to a couple of weeks.

With that said, back in 1928, the writing of obituaries was not as common as today, most people did not pay to have them published. But, give it a try.

Ron Bestrom