Hi Carol, send an email to the Sno-Isle Genealogical Society, firstname.lastname@example.org about Route 4. See their website on rootsweb.com, choose washington state, choose Snohomish county. The only other place I know of would be the U. S. Post Office.
For a copy of the obit, send an email to email@example.com with her name, where and when she died. They will look it up in the newspaper microfilm and email the reply to you for FREE.They do this for the entire state. Judy