This is not primarily a genealogy site. On the other hand, it is hard to collect information about a small location populated by only a few families without collecting some genealogical information, so here it is.
Analysis of deoxyribonucleic acid (DNA) can be a useful adjunct to traditional genealogical research. DNA is a biological 'code' that defines most life forms on our planet, including us. If that code was passed unchanged from one person to another (cloning), we would all be alike, but we aren't. DNA changes naturally in two ways. First, sexual reproduction, in which genetic information from two parents is combined, taking some parts from each parent, into a single set of DNA that defines the new offspring. Second, biological errors, often occurring during cell replication.
Differences in DNA from one generation to another are statistically small, but over the course of several generations it becomes possible to detect patterns, where a change has occurred that propagates to all descendants onward from the time when the change first appeared. The value for genealogy is that comparison of your DNA with that of another person can provide evidence of your relationship, or the absence thereof, to that person.
DNA thus provides a way to verify, or disprove, heritage information obtained from traditional historical research, and may also suggest directions for additional investigation.
Below are some pages that may be useful if you are interested in DNA-based genealogy. As with historical research, it is important to check all information at least twice in this rapidly-changing field. DNA testing is big business, so you may have to distinguish factual data from advertising.