It's not Irish. This is from The St. Petersburg Times. "The song was written in 1875 by Thomas P. Westendorf, a public school music teacher in Plainfield, Ind. The story goes that Westendorf's wife, Jennie (sometimes referred to as Jeanie), was away on a trip to her hometown of Ogdensburg, N.Y., ...
"Cool. Now tell us how many this has a scanner read the barcode off your screen..."
If his experience is like mine, the answer is "None".