About Allen J.(.A.J.).,. Elmer Ballantyne Felix Books by Allen J.(.A.J.).,. Elmer Ballantyne Felix nēhiyawēwin awāsi-masinahikanis—A Little Plains Cree Book for Children A Reference for Teaching the Plains Cree Language by (author) Patricia Deiter & Allen J.(.A.J.).,. Elmer Ballantyne Felix