I guess I posted too soon. It is named "Firm Gold", or "Firmgold".
A chance seedling found growing among some Starkspur Golden Delicious and Starkrimson Red Delicious trees, in Zillah, Washington, USA, by Z.B. Howell. Fruits have firm, crisp, juicy flesh with a sweet flavour.

Here is a link that might be useful: Firmgold

This post was edited by milehighgirl on Wed, Mar 19, 14 at 23:38

Removing double post

This post was edited by milehighgirl on Wed, Mar 19, 14 at 21:50