For background on how the map was made (and its flaws), see the relevant blog entry.
|Mac Pheadair||Mac Feeters, Peters: líon beag: an Dún, Doire & rl.|
|Peters||fairly numerous: Kilkenny-Tipperary-Cork, Down etc. Ir. Mac Pheadair. English or Welsh, and associated with Cornwall.|
DEDs where Peter and a second surname are found together