Provisional and Territorial Records Guide
Lewis County History and Records
Lewis County was created from Vancouver County on December 21, 1845. In 1844, an effort had been made to establish two counties north of the Columbia River, to be named Lewis and Clark, but the bill as finally passed by the provisional legislative assembly, provided for one county named Vancouver. Lewis County was named after Captain Meriwether Lewis of the Lewis and Clark Expedition.
Lewis County originally included all of the territory west of the Cowlitz River, between the Columbia River and latitude 54' 40". Since then, however, Lewis County has been subdivided several times and new counties have grown from these subdivisions. The United States Great Britain Boundary Treaty (1846) caused the northern boundary of Lewis County to be changed from latitude 54' to latitude 49' and down the middle of the Straight of Juan de Fuca. In 1851, Pacific County was created from the southeast corner of Lewis County. In 1852, Thurston County was formed from the northern portion of Lewis County.
The two years prior to the establishment of Washington Territory saw various acts passed by the territorial legislative assembly which directly affected Lewis County government in 1851 and 1852 the legislative assembly formally recognized the county board of commissioners as a legal body, changed the times of holding court in the Third Judicial District (Lewis, Clatsop, and Clark counties), redefined the eastern boundary of Lewis County, and established the land claim of Fred Clark as a temporary county seat. The county seat traveled between the homes of various county officials until 1862, when Claquato became the seat of county government. The town of Saundersville, renamed Chehalis in 1879, became the county seat in 1872.
In 1853, an act was passed which authorized the board of commissioners to levy a road tax. On March 2, 1853, Washington Territory was created and Lewis County was no longer under the jurisdiction of Oregon Territory.
356. Census Rolls (LEWCOUN001)
.1 cubic feet
Series used to document county population and to report statistics to the territorial government. Census rolls show residents name; number of legal voters, adult males and females, males aged 10 to 21, females aged 10 to 18, and males and females under age 10; totals; census date; and census taker's certification. Series is not arranged.