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| Mac Íomhair | Mac Ivor, Mac Keever: líonmhar: Ulaidh. Dream Albanach, ón ainm Lochlannach Ivarr, ach sloinne dúchasach, leis: féach Mac Éimhir. |
| MacKeaver | Very rare: Belfast. See Mac Keever. |
| MacKeever | numerous: Ulster generally, Louth-Meath etc. Ir. Mac Íomhair and also Mac Éibhir in relation to Oriel where the first name Éibhear was current. See also Mac Ivor. |
| MacKeivor | Very rare: Down. See Mac Keever. |
Parishes where McKeever and a second surname are both baptised.