 Brosious, Walter J. Reed, and Ignatius A. Navarre.Roslyn was platted in 1886 by Logan M. Bullet, vice president of the Northern Pacific Coal Company, at the time that the company initiated the first commercial coal mining operations there, to support railway operations.Throughout the mid-1880s, the Northern Pacific Railway, the parent of Northern Pacific Coal Company, pushed from the east to reach Puget Sound across the Cascade Mountains.