Civil registration of births, deaths and marriages, Ireland · General Register Office
1905 Twelfth October Carrickmacusker | Mary | Fem | James Gunn Carrickmacusker | Alice Gunn formerly Donnelly
A third attested spelling of the townland, from the GRO birth register page (image 1693536): the registrar wrote "Carrickmacusker" in 1905, the GEDCOM gave "Carrickmacoske" and "Carrickmacosker", and Wikidata Q104366596 has "Carrickmacosker". Recorded here so the merge above is auditable from the record rather than from resemblance.