The Church of the Firstborn (or the "LeBarón family") is a grouping of competing factions of a Mormon fundamentalist religious lineage inherited, adherents believe, by a polygamous family community that had settled in Chihuahua, Mexico, by Alma Dayer LeBaron Sr. by 1924. Since its founding, the order's most notable enclave has been within the jurisdiction of Galeana Municipality, Chihuahua. The LeBarons christened the LeBaron ranch Colonia Le Barón in the 1950s. Especially in more recent years, it is a minor segment of the order that engages in the practice of polygamy.