Hello LWJ.
Extract from, A Manx Note Book.
GILLOWYE, MAC GILLOWYE, LOWEY, (extinct). Perhaps the descendants of LUIGH or LEWEY, a name borne by the son of Cormac Gaileng. The name LUGHAIDH was anglicised LOWAY in Ireland.
GILLOWYE and MAc GILLOWYE are only found in 1511, but LOWEY survives as late as 1734, and was at one time common in several parishes.
LOWEY [1609], LOWIE [1611], LEWIE [1629], LOWEAY [1670], LOWY [1707], LOWAY [1734].
www.isle-of-man.com/manxnotebook/manxnb/v07p114.htm
Averil