Finola:
The subscription site Roots Ireland has an 1817 marriage of a Michael Butler to a Catherine Butler in the Freshford RC parish not Urlingford.
I also located the baptismal records you mentioned but they also occurred in Freshford not Tullaroan.
The 1849 Griffiths Valuation head of household listing shows a Michael Stapleton in Brittas townland in Tullaroan civil parish.
I did not see a death record for him. Civil registartion of deaths started in 1864.
Roger McDonnell