For background on how the map was made (and its flaws), see the relevant blog entry.
|MacCroary||rare: Antrim etc. See Mac Rory.|
|Rodgers||Very numerous: mainly Ulster, also Munster. Ir. Mac Ruaidhrí. Ruaidhrí was a popular first name in mediaeval times: meaning "red king". The English name Rodgers appeared in 17 cent and has superceded the native one but see Mac Rory.|
|Rogers||numerous: all areas, least in Munster. Ir. Mac Ruaidhrí. See Rodgers.|