This file contains correspondences from Bruce Rigsby to Wilson Duff. Rigsby summarises his meetings with a number of Gitxsan, Nisga'a, and Tsimshian individuals, including the recording of information about houses of specific kinship lineages (or clans) and other oral histories. Rigsby also includes a proposed orthography for Nisga'a and Gitxsan, a copy of his article "A note on Gitksan speech-play", and a copy of a conference paper "An early nineteenth century prophet among the Gitksan". Records in this file refer to the Nisga'a people as Nass.

File contains images of Tsimshian artifacts housed in museums in British Columbia and in what is now known as the Canadian Museum of History. The file also contains images of Tsimshian villages along the Nass River, and historical photos of Tsimshian peoples.