Cannon Beach History Center and Museum - www.cbhistory.org
Cedar Mill History - www.cedarmill.org
Clark County Historical Society and Museum - www.cchmuseum.org
Friends of Historic Forest Grove - www.historicforestgrove.org
Garden Home History Project - www.gardenhomehistory.com
Hillsboro Historical Society - www.hillsborohistorical.org
Sherwood Historical Society - www.sherwoodhistoricalsociety.com
The Oregon Historical Society - www.ohs.org
Tigard Historical Association - www.tigardhistorical.org
Tualatin Historical Society - www.tualatinhistoricalsociety.org
Washington County Heritage Online - www.washingtoncountyheritage.org
Washington County Museum - www.washingtoncountymuseum.org