Mac Giolla Choille
Mac GIOLLA CHOILLE—IV—M'Gillechoile, M'Gillechill, MacIlhoyle, MacElhoyle, MacElhill, (?) Hoyle, (?) Hoyles, (?) Woods; 'son of Giolla Coille' (a name given probably to one born on New Year's Day—not from coat, a wood); a rare Ulster surname; perhaps sometimes erroneously 'translated' Woods, and sometimes shortened to Hoyle or Hoyles.
Alphabetical Index to Irish Surnames