Does anyone know the history of the building? Is there a website detailing the history?

It was the old guest house for the Fort

The Red Shield Inn is one of two surviving Fort Lewis buildings that date back to the World War I era, when the present Fort Lewis was "Camp Lewis". It is the only remaining structure from a onetime recreational area that was called Greene Park.[2] The building, in Western Stick–style, was built in 1918 by Pratt & Watson Construction Co. of Spokane, Washington, for the Salvation Army, at a cost of $107,000. It was named the Red Shield Inn, based on the Salvation Army symbol. It was 47,966 square feet (4,456.2 m2) in size and had approximately 150 rooms. The Salvation Army sold it to the U.S. Army on July 21, 1921, for the nominal price of one dollar. It was briefly known as the Camp Lewis Apartments, then the Camp Lewis Inn, and from 1927 the Fort Lewis Inn.[2][3][5] In August 1972, after the new Fort Lewis Lodge opened near the Main Post Headquarters, the building was preserved to become the new home for the fort's museum. The inn officially became the Fort Lewis Military Museum on Ju