I am part of the 3 brothers under John1. As all other researchers of these three English Connecticut brothers, we don't know the parent's of these brothers. Oh yes many have added several speculated parents to the list, but none seem to have verified documentation and to date nothing has been found.
You seem to say "I'm able to trace my family line from myself to Robert de la Beche (1564-1664 Devon, England) who was the father of Rev. John Thomas Beach, the father of the three Beach brothers who came to Connecticut." Do you have documentation of this? We would love to get the 3 Brothers grandparents and further back, but don't have positive proof of their father nor any connection further back.
As we know from English history, no de la Beche seems to be connected to English royalty. The line of de la Beche, were large land owners and participated in the Crusades, but appear to end with no male heirs.
Could you please let us all know what verified data you have on these de la Beche and Beach lines.
John H. Beach