I make the last five letters of the surname "awaye", so I see no possibility that it could be Pomeroy. Bookbox's "Kennaway" seems to be the ticket, only with an "e" at the end.
E.G. Withycombe, in The Oxford Dictionary of English Christian Names, mentions the use in England of feminine forms of Richard and notes that "Richoard" was "fairly common in Devon in the 17th C.".