Benton County Courthouse - Oregon - was created in 1888.
Hillsboro, Oregon is in Washington County.
Sherwood, Oregon is in Washington County.
Washington Square - Oregon - was created in 1974.
You can get letters testamentary from wherever the will is going to be probated. So go to the county courthouse probate court in Washington and get them or hire a probate attorney to do this form you.
Lincoln County School District - Oregon - was created in 1923.
Beaverton, Oregon is in Washington County.
The address of the Genealogical Society Of Washington County Oregon Inc is: 32455 N W Padgett Road, Hillsboro, OR 97124-8334
The web address of the Washington County Museum is: http://www.washingtoncountymuseum.org
The phone number of the Washington County Museum is: 503-645-5353.
The web address of the Washington County Historical Society is: www.washingtoncountymuseum.org
The address of the Washington County Museum is: 17677 Nw Springville Rd, Portland, OR 97229