Mobilian Jargon is a pidgin based on Western Muskogean. The Alabama language is part of the Muskogean language family. Their language is classified as a member of the Muskogean language family. Culturally and linguistically these tribes were of Muskogean stock. Their Choctaw language belongs to the Muskogean language family group. He speculated that Cusabo was related to the Muskogean family. The Choctaw language is a member of the Muskogean family. Use of both Muskogean languages has declined among younger people. Chickasaw, Choctaw and Houma form the Western branch of the Muskogean language family. Their language, "Mvskoke", is a member of the Creek branch of the Muskogean language family. The Koasati language is part of the Apalachee-Alabama-Koasati branch of the Muskogean languages. Choctaw is part of the Muskogean family, like Seminole and Alabama. Hann (1992) claims that Yamasee is related to the Muskogean languages. Several sparsely attested languages have been claimed to be Muskogean languages. Thus, the connection of Yamasee with Muskogean is unsupported.