Hello, My name is Mary K. Gleason. My father's name is Thomas Gleason.I'm trying to reaseach my families origin as I am going to Ireland and would like to trace my families heritage further. My grandfather's name is Michael and my Grandmother's name is Mary Gleason. The bith and death dates seem to match the dates you have outlined in your message.Could you tell me a little more about your family?Where did they originate from and what generation are you? Thank you.