Hi Bryan,
This is the only John Murnane (+ surname variants) from Tipperary 1820 + - 10 years from www.rootsireland.ie/:
Name:John MurnaneDate of Birth:
Date of Baptism:03-Jul-1820Address:Not RecordedParish/District:NEWPORTGender:MaleCountyCo. Tipperary
Denomination:Roman Catholic
Father:John MurnaneMother:Elizabeth RyanOccupation:
Sponsor 1 /
Informant 1:Ed Murnane Sponsor 2 /
Informant 2:Bgt Nix
Notes:
M MCCARTY [PRIEST]
E *** BETTY
Siblings:
Name:James MurnaneDate of Birth:
Date of Baptism:17-May-1818Address:Not RecordedParish/District:NEWPORTGender:MaleCountyCo. Tipperary
Denomination:Roman Catholic
Father:John MurnaneMother:Elizabeth RyanOccupation:
Sponsor 1 /
Informant 1:George Ryan Sponsor 2 /
Informant 2:Mgt Kelly
Name:Judith MurnaneDate of Birth:
Date of Baptism:10-Sep-1823Address:BirdhillParish/District:NEWPORTGender:FemaleCountyCo. Tipperary
Denomination:Roman Catholic
Father:John MurnaneMother:Elizabeth RyanOccupation:
Sponsor 1 /
Informant 1:Pat Foley Sponsor 2 /
Informant 2:Mary Ryan
Name:Margaret MurnaneDate of Birth:
Date of Baptism:29-Apr-1816Address:BirdhillParish/District:NEWPORTGender:FemaleCountyCo. Tipperary
Denomination:Roman Catholic
Father:John MurnaneMother:Elizabeth Ryan
Name:Mary MurnaneDate of Birth:
Date of Baptism:28-Oct-1814Address:Not RecordedParish/District:NEWPORTGender:FemaleCountyCo. Tipperary
Denomination:Roman Catholic
Father:John MurnaneMother:Elizabeth RyanOccupation:
Sponsor 1 /
Informant 1:Connor Casey Sponsor 2 /
Informant 2:Bgt Galavay
Notes:
MT MCMAHON [PRIEST]
E *** BETTY
It is 61km from Newport to Cahir so it might be a longshot that these are yours - depends on the names you have in the book.
Unfortunately the Irish Censuses of 1821 & 31 don't have Tipperary records; the Tithe Applotments have 19 Murnanes, 16 Marnanes & no Murnans in Tipp 1826-34
http://titheapplotmentbooks.nationalarchives.ie/
I couldn't find a marriage record for John & Elizabeth
Col