Park Ranger Bobby Bartlett, a community icon known as “Mr. B,” gives the invocation Oct. 19, 2018, for the Dale Hollow Dam and Reservoir 75th Anniversary Commemoration at the dam in Celina, Tennessee. He previously gave the 50th Anniversary invocation in 1993. The U.S. Army Corps of Engineers Nashville District is proud of his service to the lake and community for the past half century. He began working for the Corps of Engineers in 1985 and has since held multiple positions as a park host, maintenance worker, park technician, and park ranger. (USACE photo by Lee Roberts)