R.L. Polk & Co

• 1982 San Francisco (San Francisco County, Calif.) City Directory
• Polk's Motor vehicle registration manual
• Fort Wayne city and Allen County directory
• Little sketches of big folks, Minnesota 1907
• Medical and surgical register of the United States comprising ... index of all the physicians in the United States ...
• Minnesota, North And South Dakota And Montana Gazetteer And Business Directory; Volume 16
• Polk's Stoughton (Massachusetts) directory, 1930-31
• R.L. Polk & Co's Salt Lake City street and househoulders guide, 1923, 1924
• The Salt Lake City blue book (householder's directory) 1901-1902...
• 1980 San Francisco (San Francisco County, Calif.) City Directory
• 1984 Galion (Crawford County, Ohio) city directory
• Crocker-Langley San Francisco (California) city directory