Click on the red marker on the map below for a link to the full 1901 census entry.
rare: scattered. See Connor.
numerous: E Ulster, Mayo, Roscommon etc. Ir. Ó Conchubhair (Conchúir). See O'Connor.
fairly numerous: Wexford, Waterford etc. As Connor.
Very numerous: all areas, especially Munster. Ir. Ó Conchubhair, from first name Conchubhar, lover of hounds. Six different septs are mentioned. That of Connacht is divided into: O'Connor Roe, O'Connor Sligo and O'Connor Don, of which, Roderick, the last High-King of Ireland. IF & SGG.