Certainly, Mose had had a greater influence than a fan base. Both Michael Franks and John Mayer would seem to be the direct lineal decendents of his vocal style, regardless of the quality of their music. "Creek Bank" is a good place to start, there is also a nice reissue twofer on Fantasy that includes Creek Bank and another record that is usually very inexpensive. The earlier recordings on the Prestige label seem superior both artistically and sonically to the later Columbias. Gemm, as Agaffer suggests, is a good source.