Silas designed the
Charlotte White Mottet Library (1930) for businessman Frederic Mottet, who "built up one of the greatest mercantile establishments in the Pacific Northwest, the
Hunt and Mottet Company. He gave the library to Tacoma "in memory of his wife who was prominent in Tacoma's cultural and social life during the late 1880s" on a site "chosen because Mottet and his wife spent many hours riding in the McKinley Hill area." It was built for $9,800, including the land. It was constructed with
whitewashed brick library, and styled after a French provincial
cottage consistent with Mottet's
French Huguenot ancestry. Additions and renovations were carried out in 1964, 1975 and 1989 to "expand the library, bring it up to code, and add a community meeting room." ==Works==