An interesting website titled "Abandoned & Little-Known Airfields" contains some features on Dayton's McCook Field, and various other Southwestern Ohio fields, among the 2000 plus airfields that it lists in 50 states. The pages are organized by state, with sub-pages for regions within the states. The link to the page on McCook can be found at this link: http://www.airfields-freeman.com/OH/Airfields_OH_SW.htm#mccook.
(A link can also be found on this Aviation Trail website at "Aviation History Links" under the "Learn More" tab).