Writer. The original manuscript (1959), first proof, and plate proof of Ruth’s book Colorado Vacations, published by the Alfred A. Knopf Company in 1959; personal and professional correspondence (1920s–1980s); research files (1961–1987) for a travel series Ruth wrote for Oklahoma newspapers; research files (1965–1988), primarily on Oklahoma and southwestern topics; research files (1956–1977) exclusively on Oklahoma places and points of interest; drafts, story lines, ideas, and manuscripts, including published items, (1928–1965) for articles and books; travel columns (1971–1985); manuscripts and published items for filler pieces (1953–1986); trip notes (1950–1985); and general research notes (1962–1990).