Johnston Atoll United States National Wildlife Refuge system in 1926 "Johnston Atoll, About the Refuge" https://www.fws.gov/refuge/Johnston_Atoll/about.html "Johnston Atoll, About the Refuge" "Johnston Atoll, About the Refuge" https://www.fws.gov/refuge/Johnston_Atoll/about.html https://www.fws.gov/refuge/Johnston_Atoll/about.html https://www.fws.gov/refuge/Johnston_Atoll/about.html Johnston Atoll "Johnston Atoll, About the Refuge" “Johnston Atoll, About the Refuge”