Areas of expertise: Hupa language and culture, language and communication in Native communities, Native cultures of North America, Native cultures of California, international indigenous language issues, Indians in American history, and Native languages of California.
"Resources for the Study of the Hupa Language: an annotated bibliography of published and unpublished work." 1984.
"A Short Practical Grammar of Hupa." 1985.
"American Indian Languages." Editor Victor Golla. 1990.
"Takelma Texts and Grammar." Vol. Editor Victor Golla. 1990.
"Hupa Grammar." PhD Thesis at the University of California at Berkeley. 1970.