SYLVANIA - Edward and Thetis Brinson will be joined by Georgia Agriculture Commissioner Gary W. Black as grand marshals of the 60th Annual Screven County Livestock Festival Parade April 9. The Brinsons are lifelong residents of Screven County, who have farmed and supported livestock activities throughout their lives, said Chamber of Commerce interim director Brooke Lawn. "They have been very supportive of our youth organizations," said Ray Hicks, county extension coordinator and a board member for the Chamber, "and we are proud to honor and thank them for their many contributions to Screven County.