Alexander Boles, a farmer of Lisnabane, Aghavea parish, co. Fermanagh, died Aug. 6, 1892 but his Will was proven on May 2, 1893 by his sole executor William Boles (labourer) of Lurganbane, co. Armagh. ref. That would indicate a very close relationship.  See also The Bowles of Aghavea