No, this has nothing to do with that kind of 69.
I was just listening to some Civil War music and am in kind of an historical mood.
Although a lot of people today have forgotten it, Irish immigrants played a big role in the American Civil War. The 69th New York Infantry was a volunteer regiment made up mainly of Irish immigrants from New York City that first won notoriety at the First Battle of Bull Run, where they were one of the few Federal units to retain cohesion after the defeat and they served as the Army of the Potomac's rearguard during the retreat back to Washington DC.
After Bull Run, the 69th became the lead regiment of the Irish Brigade. With the famous battle cry of "fág an bealach," it became one of the most distinguished units of the Army of the Potomac. At the Battle of Fredericksburg, Confederate General Robert E Lee dubbed them The Fighting 69th, a title the unit bears to this day. Of all Union army brigades, only the 1st Vermont