Greenbrier is an unincorporated community in the southeastern part of Wayne Township in Bollinger County, Missouri, United States. The name Greenbrier been attributed as being due to the vegetation growing in the area, particularly blackberry and other green briers.State Historical Society of Missouri: Bollinger County Place Names, 1928-1945 http://shs.umsystem.edu/manuscripts/ramsay/ramsay_bollinger.html The community was situated along the branch railroad which connected Brownwood in Stoddard County to Zalma.A Directory of Towns, Villages, and Hamlets Past and Present of Bollinger County, Missouri A post office was in operation between the years 1889–1957.Post Offices in Bollinger County, MO
References