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April 14, 1949 -
BENTON gained from LINCOLN.
(Ore. Laws 1949 gen. 45th reg. sess. ch. 401/pp. 593-596)
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March 03, 1927 -
April 14, 1949
BENTON lost to LINCOLN when boundary redefined to run along range line.
(Ore. Laws 1927 gen. 34th reg. sess. ch. 278/pp. 350-351)
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February 15, 1923 -
March 03, 1927
BENTON gained from LANE.
(Ore. Laws 1923 gen. 32nd reg. sess. ch. 92/pp. 129-131)
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February 20, 1893 -
February 15, 1923
BENTON lost to creation of LINCOLN.
(Ore. Laws 1893 gen. 17th reg. sess. pp. 68-77)
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February 14, 1859 -
February 20, 1893
Inherited from OR Territory
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