Fred Flintstone and his best friend Barney Rubble were members of the Loyal Order of Water Buffalo Lodge number 26. The fraternity was originally called the Loyal Order of Dinosaurs and appeared in 20 episodes, according to Grand Lodge of British Columbia and Yukon.
According to the Grand Lodge of British Columbia and Yukon, throughout the show there were at least five different lodge halls portrayed.
"The Flintstones" premiered in 1960 and ran for six seasons. Created by William Hanna and Joseph Barbera, the cartoon featured the voices of Alan Reed as Fred Flintstone, Mel Blanc as Barney Rubble, Jean Vander Pyl as Wilma Flintstone and Bea Benaderet as Betty Rubble.