For background on how the map was made (and its flaws), see the relevant blog entry.
|Durcan||numerous: Mayo-Sligo, S Down etc. Ir. Ó Duarcáin, duarcán, a gloomy person. The family was a branch of the O'Haras in Sligo. The Irish form Mac Dhuarcáin produces MacGurgan in Armagh etc.MIF & SGA.|
|Mac Dhuarcáin||Durcan: líonmhar: Maigh Eo-Sligeach & deisceart an Dúin. Tugtar Gorkin agus Zorkin orthu, leis. Craobh de Mhuintir Uí Eaghra, Sligeach. Fréamh duairc = gruama. SGG &MIF.|
DEDs where Durcan and a second surname are found together