Hi - it's probably too late for me to respond but here goes anyway: I have Pearls in my family tree from Brettenham, Rattlesden, Hitcham etc right back to 1541 when they seem to spring from nowhere in Rattlesden (John Pearle, Yeoman). The Samuel Pearl mentioned is in my family tree, as is Rebecca Calver(t). I would be happy to give more info if required.
Chris