He took a Donation Land Claim in Yamhill County next to his lifelong friend Amos Cook .
He arrived at Fort Vancouver accompanied by Amos Cook , Joseph Holman , and Ralph Kilbourne .
Amos Cook took a Donation Land Claim in Yamhill County next to Amos Cook 's lifelong Amos Cook   Cook .
He arrived at Fort Vancouver accompanied by Amos Cook , Joseph Holman , and Ralph Kilbourne .