But also his planxty "Uilliam O Flynn"
Midi file here: http://www.irishpage.com/songs/carolan/flynn.mid
John was killed on the railroad in 1881. When I was trying to find his death record, I did not yet know his name or the exact year; but I figured how many Flynns could be killed on the railroad in Washington, NJ, in the 1880s? The answer turned out to be 2. The other was his younger brother. (This actually led to the uncovering of an entirely unknown cadet branch of the clan!) There was a third Flynn, also named John, also married to an Ann, also with several children bearing the same names. But no relation.
The rest, as they say, is history.
I should add one other Irish connection. Francis Thomas Flynn (2nd from left) married a woman whose mother came from Co. Cavan. She was Mary McGovern. There was a remote and inaccessible region of Cavan known as the Glan, wherein lived (as the Topographical Dictionary states) a primitive race of McGoverns and Dolans, who married one another and who annually elected the "King of the Glan" from among the ancient race of McGoverns. They seem to be descended from the notorious Squint-Eyed Terry McGovern who got into a feud with the Dolans over his daughter's elopement. In any case, Mary was a school-teacher in Cavan and her parents were Matthew McGovern and Katherine Dolan.