Dear Jane
Welcome to Ireland Reaching Out!
Rootsireland.ie has a baptism record for a John in the parish for 3rd April 1849. He also had a sister Mary baptised on 27th March 1847 and another sibling, name not recorded, baptised on 11th Sept 1852. I couldn't see a marriage record for John and Bridget but there is one for Patrick 'Bolan' and Catherine who were married on 12th July 1818 in Athlone. They had at least one son, John baptised on 11th July 1819. You could have a look on that database to see if you can find out more. It is a subscription site but you can subscribe by the month if you wish and you can see the originals for free here: http://registers.nli.ie
One way of tracing who was on the property up to the mid-1900s is through the cancelled books. You can read more about them here but unfortunately they are not yet available online:
http://www.irish-genealogy-toolkit.com/revision-books.html
It would seem that the family lived and stayed for generations in Athlone Co. Westmeath so you certainly can say that "your people" are from the area.
Let me know what you think - I would love to know all about your trip
Best wishes
Clare Doyle
Genealogy Support