Miscellaneous References and Mentions

While our initial information about Duncan came from various goverment sources (GNIS, US Census, FIPS), we also found mention of Duncan in various books, maps and other sources.

We've created the following list to keep track of the sources that proved useful in adding to our knowledge about Duncan. We hope that they will be useful to you.

Note: Initially, we were careless about keeping track of where our Duncan data came from. The following list of references and mentions is incomplete.

Rand McNally Map of Oklahoma (1911)
Published by Rand McNally & Co.

Shell Oil Road Map for Oklahoma (1948)
Published by Shell Oil Company

Duncan is contained in a comprehensive list of Post Offices that was created by Cameron Blevins and Richard Helbock.<1>

We found Duncan in these Censuses: 2010-1990. See our Census Page for Duncan for more information.

Both the GNIS and FIPS databases contain entries for Duncan. See our Misc Page for Duncan for more information.