I have found a reference to a marriage in Mallow, Co Cork for a Frederick Donnell MacDonald in October 1908 but it gives the spouse name as 'unknown'. I know he lived in Mallow in 1901 and his younger brother Douglas William was demobbed at Mallow in 1902 but l have been unable to find anything on this even in Mallow or Fredericks area of London. Does anyone know any more of this please?