Looking for Smith family in County Armagh and County Monaghan

My 3rd great grandmother was Sarah Smith bc 1822 in County Armagh. She married Peter Smith (yes, she did not have to change surnames!) 14 Feb 1841 in Glasgow. Peter was born in County Monaghan around 1912. His parents were John Smith and Rose McInally/McNally.

My husband and I will be visiting Ireland in the late spring of 2016. I would dearly love to find their parishes.