The following were found on irishgenealogy.ie.
Here’s an 1829 marriage record for a Mary McCarthy in Inchigeelagh. One of the witnesses was Jeremiah McCarthy.
https://churchrecords.irishgenealogy.ie/churchrecords/details/a6eb9e0009789?b=https%3A%2F%2Fchurchrecords.irishgenealogy.ie%2Fchurchrecords%2Fsearch.jsp%3Fnamefm%3Djeremiah%26namel%3Dmccarthy%26location%3DInchigeelagh%26yyfrom%3D%26yyto%3D%26submit%3DSearch
Here's a Daniel with mother Ellen Hurley but father Daniel, not Jeremiah...
Area - CORK & ROSS (RC) , Parish/Church/Congregation - ROSSALETTIRI & KILKERAUNMOR (ROSCARBERY & LISSEVARD)
Baptism of DANIEL MCCARTHY of KINEAGH on 17 February 1840
Name DANIEL MCCARTHY
Date of Birth N/R N/R N/R
Address KINEAGH (about 11 miles from Inchigeelagh)
Father DANIEL MCCARTHY
Mother ELLEN HURLY
Sponsor 1 FRANCIS MCCARTHY
Sponsor 2 MARY MCCARTHY
Recorded Parochial Area ROSSALETTIRI & KILKERAUNMOR (ROSCARBERY & LISSEVARD)
Book Number Page Entry Number Record_Identifier Image Filename
N/R N/R N/R CR-RC-BA-233948 cork & ross.rossalettiri & kilkeraunmor (roscarbery & lissevard).p4773.00247
Here's an 1829 marriage for a Jeremiah McCarthy and an Ellen Hurley....Names were common...it might just be a couple by the same name.
Area - CORK & ROSS (RC) , Parish/Church/Congregation - AUGHADOWN
Marriage of DEMETRIUS MCCARTHY of N/R and ELLENAM HURLY of N/R on 26 February 1829
Husband Wife
Name DEMETRIUS MCCARTHY [Latin for Jeremiah] ELLENAM HURLY
Recorded Diocesan Area CORK & ROSS
Recorded Parochial Area AUGHADOWN
Husband Denomination RC
Wife Denomination RC
Witness 1 JOHANNE DRISCOL
Witness 3 ABRAHAM BURCHILL
Book Number Page Entry Number Record_Identifier Image Filename
N/R N/R N/R CR-RC-MA-44968 cork & ross.aughadown.p4775.00561