Shaun:
Welcome to Ireland Reaching Out!
Oughterard RC records start in 1809. I searched the subscription site Roots Ireland and did not find any baptismal records for a Peter Savage back 1810 or earlier. I did locate the 1829 marriage record which you mentioned in your message. I also found a baptismal record for a son Richard in 1830 (see below). There were no Savage records in Kilcummin parish in the Tithes or the Griffiths.
Getting back to Richard, I located an 1857 marriage record in Oughterard between Richard Savage and Bridget Kenny. There were at least six children: Peter John 1858 Mary 1860 Jane 1863 Thomas 1865 Elizabeth Margaret 1869 Richard 1872 By the way, here is Richard's civil birth record and the family was living in the townland of Clare which is a very small townland which I believe is/was part of the town of Oughterard.
https://civilrecords.irishgenealogy.ie/churchrecords/images/birth_retur…
Looks like Bridget died in 1894 https://civilrecords.irishgenealogy.ie/churchrecords/images/deaths_retu…
Here are the father Richard and daughter Elizabeth in the 1901 census http://www.census.nationalarchives.ie/pages/1901/Galway/Oughterard/Faug…
I did not see any members of the family in the 1911 census and was unable to find a death record for Richard Sr.
Let me know if you have any questions.
Roger McDonnell
Name:Richard SavageDate of Birth:
Date of Baptism:11-Oct-1830Address:Not RecordedParish/District:KILCUMMIN OUGHTERARDGender:MaleCountyCo. Galway
Denomination:Roman Catholic
Father:Peter SavageMother:Mary LarnerOccupation:
Sponsor 1 /
Informant 1:John Sullivan Sponsor 2 /
Informant 2:Mrs Kilfoyle
Date of Marriage:18-Jul-1857
Parish / District:KILCUMMIN OUGHTERARD
County:Co. Galway
Husband RichardSavage
Wife BridgetKenny