Richard Tobin aged 2 was my grandfather his older brother Thomas did I believe die in. 1926
Now that is interesting. I have two records for my great grandfather that show him arriving in New York City in November, 1924. One of the records confirms that he came from Lisseevin in Ireland and his father was a Patrick Tobin. Really all that I have is hearsay after this from my family until the 1950 census records release for the US.
Kathleen Hegarty Thorne, the author of "They Put The Flag a-Flyin: The Roscommon Volunteers 1916-1923" had reached out after I bought a copy of the book and was able to confirm that Thomas Tobin, listed as being born in Ballyfarnon did leave Ireland after the civil war and that he had been sent to a Tin Town for much of the conflict.
This pretty much fits the narrative of my family's description of events. From what they had told me, he didn't leave Ireland under very good circumstances due to being in league with the IRA and he did so in a hurry bringing very little belongings. He then left Ireland to start a new life in the US. I'm not sure when exactly he died but I do believe he was older since he had retired after working as a bus driver.
I apologize if I'm rambling a bit, but does this seem to corroborate with any information that you know Humph?