Dear Audrey,
Thank you so very much for the info you sent me, but unfortunately I do not think the info you sent me on Thomas is the one I am looking for.
Following are the approx. years of birth for the siblings of Thomas:
Michael b. 1845, John b. 1848, Patrick b. 1849 and Andrew b. 1851. I know for sure that John and Mary are the parents to John because it is stated on his death certificate. On the death cert. for Thomas, the parents are listed as unknown. All of the above named Fallon's lived together in Pittsburgh, that is how I came up with them probably being brothers and also I was told through the years that 5 brothers originally came to the US.
If you come across any other information, please send it along. Again, thank you in advance for your time and help.