Recordings of Cherokee, Naskapi, Penobscot, Sioux (Santee), and Ho-Chunk materials. The copies in the APS Library were made from discs recorded by Speck in the field in various places in the United States, Canada, and Labrador between 1935 and 1937.

Field recordings made in Arizona in 1965. Hopi songs of a wide variety, including kachinas, clown, and corn-grinding songs, many with translation and commentary. Also includes Pan-Indian English-language "pachala" songs and discussions of different types of songs, dances, ceremonies, and subsistence activities.

Field recordings made in 1960 at Moenkopi, New Oraibi, Old Oraibi, Shupawlavi, Shongopovi, Sichomovi, Bacavi, and Hotevilla, Arizona. Numerous Hopi songs of many types, predominantly kachinas songs.

Ahtna and Southern Tutchone songs, stories, and interviews. The majority of this collection consists of Ahtna songs and stories recorded by Frederica de Laguna in 1968. Most were recorded at Copper Center, with additional ones also recorded at Cantwell, Chistochina, Gulkana, and Tetlin. Includes dance songs, sorry songs, potlatch songs, sleep doctor songs, and others. Includes "Gulkana Potlatch Given by Bill Joe and Kate Sanford for Recovery of Maggie Joe from Illness." Some songs are Tlingit, Upper Tanana, or Tanacross in origin. Also includes Ahtna stories, autobiographical accounts, vocabularies, and interviews. There are also some Southern Tutchone songs recorded at Burwash Landing, Yukon Territory. Formerly titled "Materials Recorded at Copper Center, Alaska."

Tlingit recordings made in Yakutat, Alaska (Tapes 1-7); Ahtna recordings made at Chitina, Tazlina, and Chistochina (Tape 8 - Tape 10, track 22); Southern Tutchone recordings made at Klukshu, Yukon Territory (Tape 10, tracks 23-31). Includes personal songs, mourning songs, drinking songs, love songs, shaman songs, and children's songs. Collections formerly titled "Tlingit and Yakutat songs." Renamed in October 2019 to clarify presence of recordings from other communities.

The William O. Bright papers consist particularly of extensive correspondence relating mostly to his later academic work, a number of field notebooks from North America and India, publications on and by Indigenous North Americans (especially Karuk and other Californian tribes) and from linguistic societies, his own research and publications, and extensive lexical slip files (especially on Karuk, Spanish borrowings, and copies of Daythal Kendall's Takelma and Kalapuyan files). Many audio recordings are also present, some of which are duplicates of those at the California Language Archive. In addition to the materials browsable through the finding aid, Bright's email correspondence and computer files can be accessed onsite at the APS. William Bright's career extended to a wide variety of linguistic work, including Native Californian languages and literatures, Native American place names, editorships of major linguistics journals, and writing systems of the world.

The Mary Rosamond Haas papers are extensive, including correspondence, research notes, field notes, texts, lexical slip files, audio recordings, photographs, reprints and more, covering more than 100 languages of North America and Southeast Asia. Of particular value are notes and audio recordings from fieldwork from the 1930s on Ditidaht, Tunica, Natchez and Muscogee, work toward pedagogical materials for Thai, and groundbreaking comparative studies of several language families of North America.