For background on how the map was made (and its flaws), see the relevant blog entry.
|Jennings||numerous: most areas, particularly Connacht where a branch of the Burkes took the Irish patronymic Mac Sheóinín (son of little John). The name is common in England where it is also a dimin. of John. IF.|
|Mac Sheoinín||Jennings: líonmhar, Connachta go sonrach. Craobh des na Búrcaigh annsan.|