Hi Kris, I didn't find anything for Nelson or Anna.

I'd contact the Blue Mountain Gen. Soc., (Umatilla Co), www.uci.net/~sandral/.

Also look at Umatilla County Resources, http://gesswhoto.com/um~resources.html.

There are some Umatilla County cemeteries that are indexed at www.rootsweb.com/~cemetery/oregon/umatilla.html too. Good Luck