Microfilm and digital surrogates of microfilm are available. See volume 4 reels and subseries catalog records.
Electronic inventory available. Consult with archivist. Also see "The papers of John Peabody Harrington in the Smithsonian Institution, 1907-1957, Volume 4: A guide to the field notes: Native American history, language, and culture of the Southwest," edited by Elaine L. Mills and Ann J. Brickfield (1986). https://www.si.edu/media/NMNH/NMNH-jpharringtonguide-volume4.pdf
Series is arranged into 12 subseries: (1) Apache and Kiowa Apache; (2) Navajo; (3) Hopi; (4) Zuni; (5) Acoma/Laguna/Santo Domingo; (6) Cochiti; (7) Jemez; (8) Isleta/Isleta del Sur/Piro; (9) Picuris; (10)Taos; (11) Tewa; (12) General and Miscellaneous Materials
This series within the John Peabody Harrington papers represents the results of Harrington's work on the native languages and cultures of the Southwest, the area in which he first undertook fieldwork. The field notes were recorded just prior to and during his employment as ethnologist (1915-1954) by the Bureau of American Ethnology. The documents focus primarily on linguistic data, although they also include significant amounts of ethnographic and historical information.
Southwest, John Peabody Harrington papers, National Anthropological Archives, Smithsonian Institution
National Anthropological Archives, Smithsonian Museum Support Center, Suitland, Maryland