Hi Dennis,
I dont have an apprentiship for you, but I wanted to give you a holler from just a little bit north of you. I am in East King county, and I would also love to find an apprentiship near me. I haven't done any tanning, and my hat is off to you! I would like to go in that direction, but I have decided to hone my skills as a shoemaker using the leather that is available, then possibly move into tanning. I am in an agricultural district, so I have access to cow/bull hides if I want them. The last local tannery stopped tanning a couple of years ago.
Best of luck to you!
Patti