As many of you might realize Tailby, along with several other surnames like Talboys, is said to descend from the mysterious de Taillebois family or families, some of whom first appear in very early medieval records - most famously Ivo in the time of William the Conqueror.
You might also realize that it is often claimed that Ivo somehow managed to have male heirs (although other evidence says he didn't) one branch of whom became the first family to take up the surname "Lancaster".
I am a Lancaster genealogist, interested in history, and also the founder of the Lancaster-related DNA surname project. I'd like to suggest that Tallboy families should feel free to join our little community. It is not sure what connections we'll find, but at the very least such DNA work will show which Talboys, Tallboy etc families are in the same male line!
How to contribute or participate is explained here:http://users.skynet.be/lancaster/participate%20Lancaster.htm
The public results page is here:http://users.skynet.be/lancaster/index.htm
The project is still growing, and as it grows it's value to genealogists should increase. This requires participation!