In an attempt to establish the connection between all the DAVIDGE families, I would very much like you to join me in DNA Testing through Family Tree DNA. Males should request the test Y-DNA37 or 67, whichever you can afford, which will be compared with all other DAVIDGE male samples. Unfortunately, females cannot be tested to establish the paternal line, however, if any DAVIDGE females wish to have a DNA Test they should order the MtDNAPlus, or alternatively the Family Finder. You will find full descriptions of the Tests and what they will tell you at https://www.familytreedna.com/products.aspx.