We have never found who this John Gibbons was. One of the baptisms stated they lived in Rathcolman, which is near Mullingar. I have found them almost all in the US, but no one in Westmeath. I have been to Ireland and Westmeath to tour and enjoy the beautiful country, but did no research there. Also from finding unknown relatives in Illinois, I found pictures of my grandfather and gr grandmother and their children.
Obituaries are the best way of getting clues.
Even my own mother did not know the true home in Ireland of her own father.