Thanks to Cyndi's List for pointing me in the direction of this resource, which will save you time hunting down Connecticut maps.
The Rootweb Town Search (http://resources.rootsweb.ancestry.com/cgi-bin/townco.cgi) will help you find the information you need to locate your ancestor's home town. It allows you to enter the name of the town and the state. The search will then return the county with a link that county's Rootsweb site. The site cannot handle historic town names such as Chatham (modern Portland/East Hampton) but does return results for villages, such as Hadlyme. With the county name, finding the town on a map should be much easier.