From another tree on Ancestry, where I think I went wrong.after I found out about Quin, County Clare, I e-mailed a church in Quin and got the marriage of a Patrick Garvey to a Nancy (anna) Gleeson, this is a reply from them, My apoligies for the long delay in getting back to you since your emails of 28/29 July.
I got around to checking parish records today on your behalf.
They are the Roman Catholic church records of Baptisms and solemnised Marriages which took place in the parish of Quin-Clooney (amalgamated parishes) over the years going back to the early 19th century.
The records show that Michael Garvey, son of Patrick (Pat) Garvey and Ann (Nancy) Gleeson was baptised on 20th April 1834. This date would appear to conflict with the date of birth (1836) which you indicated. In addition, no siblings were shown to exist at that time, but perhaps Pat and Ann were born at a later stage. (I omitted to check further on them, but will do so if you wish).
Interestingly, there were 16 families of Garvey resident in the parish around that time (1834) but, to the best of my knowledge, there are none today. Perhaps the famine of 1847/48 had a devastating effect (as it did on almost half of the population of Ireland at the time), leadng to wholesale emigration..
Though the name is not uncommon in Ireland, there seems to be few Garveys today in County Clare. However, I am aware of at least one family in each of contigious parishes, Newmarket-on-Fergus and Doora/Barefield.
The marriage of Patrick Garvey and Nancy Gleeson is not reported in the records examined, perhaps for the reason that the wedding may have taken place in another parish native to the bride, and thus be the subject of records in that parish.
I hope this information may be of assistance in your research.
With best wishes.
Eddie Lawrence.