sentences:  With Dawne Anderson, Henry Gould, and others, he was one of the founders of the Poetry Mission in Providence, Rhode Island, in 1991, and subsequently served as treasurer of that organization, as well as co-editor, with Anderson, of its associated magazine, "Northeast Journal" (subsequently transmogrified into "Nedge" and edited by Gould).Holt's linguistic research has primarily been directed toward the description of endangered languages of Latin America, including Pech, Tol, and Sumu of Honduras, and Tepecano and Sayula Popoluca of Mexico.In the 1970s, he began formulating a hypothesis that proposes a genetic relationship between the Uto-Aztecan and Chibchan language-families.