Oregon Calvin Hall (2007-01-30). "English as Oregon's official language? It could happen". Oregon Daily Emerald. Retrieved 2007-05-08.  "Annual Estimates of the Resident Population for the United States, Regions, States, and Puerto Rico: April 1, 2000, to July 1, 2009". United States Census Bureau. Retrieved 2010-01-07.  Àṣìṣe ìtọ́kasí: Invalid <ref> tag; no text was provided for refs named usgs In the event of a vacancy in the office of Governor, the Secretary of State is first in line for succession. Àṣìṣe ìtọ́kasí: Invalid <ref> tag; no text was provided for refs named articlev