Welcome to the Haydock/Haddock Surname DNA Project site. We want to break down our genealogical brick walls and connect to our Haydock or Haddock cousins, finding those common ancestors whose identity has eluded us for so long. Males with all spelling variations of the Haydock or Haddock surname are invited to participate. Those variations can include: Hadcook, Hadock, Hadocke, Hadcox, Haddick, Haddix, Haddoc, Haddok, Haddox, Hadock, Haddoxx, Haedock, Haidock, Harrox, Haydick, Headcocke, Headdock, Headock, Hedock, Hedocke, and Heydock.