Thank you, Mr. Nagle. I had found that web site with the photos, and none match exactly the style, but I am assured that what I have is a WWI dog tag.
And thanks to P.F., I know something more about the man, and I am waiting to hear back from the Oregon Adj. General's office on any additional info. they may have on record. I checked e-bay as well, and there are 4 or 5 for sale, again none just the same. I will try to post a photo or two soon, so all can see what we're talking about.
I hope I can locate a relative to whom I can present the artifact.
Although no Lilly's are in the local phone directory, last night a friend remembered a Mrs. Lilly working in his grade school cafeteria, and there's a Lilly Avenue south of town. The plot thickens!