Série éditorialeRock Island city directories
Auteur de la série: R. L. Polk & Co.
- Bunn, Philippi & Wilson's directory: Rock Island, Moline, South Rock Island and Milan, 1885 par Philippi & Wilson Bunn
- A directory of the city of Rock Island for 1856-57... Davenport, Moline par compilers Fleming & Torrey
- Polk's Moline - Rock Island city directory, 1954, including East Moline and Silvis par Polk (R. L.) & Co.
- Polk's Moline - Rock Island city directory, 1966, including East Moline, Milan, and Silvis par Polk (R. L.) & Co.
- Polk's Rock Island - Moline city directory including East Moline and Silvis, 1951 par Polk (R. L.) & Co.
- Polk's Rock Island city directory 1919; Moline city directory; East Moline city directory, 1919 par Polk (R. L.) & Co.
- Polk's Rock Island city directory 1924; Moline city directory; East Moline city directory, Silvis city directory, 1924 par Polk (R. L.) & Co.
- Polk's Rock Island city directory including Moline, East Moline and Silvis, 1941 par Polk (R. L.) & Co.
- Polk's Rock Island city directory, 1933; Polk's Moline city directory, including East Moline and Silvis, 1933 par Polk (R. L.) & Co.
- R. J. Polk & Co.'s 1910 Rock Island city directory; Milan city directory; Moline city directory; East Moline city direct par Polk (R. L.) & Co.