The Woodbrook Hunt Club, cofounded in 1926 by Maj. J. H. Mathews and Thornwood Estate superintendent Thomas Bryan, is the oldest fox-hunting club west of the Mississippi. Horses have long played an important historical role on the prairies south of Tacoma. The Nisqually Indians were the first to ride horses on the Nisqually Prairie in the early 1800s, followed by the Hudson's Bay Company and horse-race activities in the 1840s. The establishment of Fort Lewis in 1917 has protected this unique prairie ecosystem, resulting in a longstanding partnership with the Woodbrook Hunt Club. Today the club continues its rich tradition on the last remaining three percent of native prairie in the Puget Sound Corridor.