We missed Seeker of Ansley at the Bighead cache, however we did find the ziplock bag it was in. There were other TB's and stuff placed in the bag for travel and not separated back out at the cache. We knew someone wanted to go to Oregon, just not sure who.
As luck would have it a Hiaku for her luck is provided.
Seeker of Ansley, her wish to go west.
MaxB's Escorted TB tours are the best way to go.
"Last Stop on the Oregon Trail" will help with her quest.