I am less than 50% Irish. My great great grandfather emigrated from Ireland in the 1850's..potato famine, I'm sure was the reason. He was a Hearney, which was shortnened to Harney. He lived in NJ, my gg grandmother was originally a Dilts...not sure if that's Irish or English, I think it's English. So this side has Irish, English, and also a little French way back somewhere.
My dad is an adoptee, so we don't know for sure...but they said he was half Italian and half English.