We knew this material was of high quality, suggesting old growth trees, and we wondered where the wood came from. Having found stamped members, and after some research at the King County Archives, Seattle DCI, and the Seattle Public Library, we feel pretty confident that this wood came from a stand of trees in the area of present day Tukwila, specifically South Center Mall.
This may be the mill, not sure. But stay tuned for more history about this home!