I don't know how much this will help, but I Googled "Siemscary" and got a Snohomish County WWI web page with this entry below. Maybe it's in Oregon. http://www.rootsweb.com/~waskagit/snohmil1.html John T. Anderson, Silvana Born 9 Aug 1888, at Silvana. Son of Mr. and Mrs. E. O. Anderson, Silvana. Entered the service at Camp Lewis, 25 May 1918, and was transferred from there to Vancouver Barracks. Served in the 87th Spruce Sqdn at South Beach OR and Siemscary. Discharged 6 Jan 1919 at Vancouver Barracks. Diane Hettrick dhettrick@earthlink.net