Our tour began and ended in the research room, where the staff had put out examples of various records for us to see. One of those was a cattle branding register book, from 1890's Lewis County. I thought this was a fascinating example of records that aren't online - because this is a record I never would have thought to look for!
State of Washington
County of Chehalis
I, D.R. Porter, hereby certify that I have adopted for a mark or brand to be used in marking my cattle situated in Chhalis County, Wash., to letter "P" about four inches in heighth and two inches in width with a bar across the upper part. The following is a correct description and representation of said mark or brand. To wit:
Recd for record Nov. 22 AD 1894 at 2 o'clock PM at the request of D.R. Porter.
Geo. W. Buyington, Auditor
By F.A. Farr, Deposit
Citation: Chehalis County, Washington, Log and Stock Brands Register, 1886-1909, entry for 22 November 1894, D.R. Porter; Washington State Archives, Olympia.