Molala language
Currently it is included among the Plateau Penutian language family, with Klamath and Sahaptin being considered the closest related.Missionary Marcus Whitman was credited for providing "much valuable information" about the Cayuse people and other natives nearby Waiilatpu.In his Waiilatpuan language family, Hale put Cayuse and Molala as the sole members.[8] Bruce Rigsby reexamined the Cayuse-Molala lexical pairs provided by Hale and found only a tenth to be potentially related terms.Upon his review of extant Molala and Cayuse linguistic data, Rigsby concluded "I do not see how the two languages could have possibly been mutually intelligible.