Thank you for checking!
The Patrick Murphy to Bridget McCarthy marriage is that of my 2x great aunt. I don't have much that, but do have a their marriage cert, a death cert for one of their offspring, and a couple of old pictures from the 1930's. If anyone is connected to that line, I'd be happy to share.
I have a McCarthy/Mahoney marriage in my line as well. My 2x great grandfather, Eugene McCarthy married Johanna Mahoney in 1859. They made their home in Beheenagh until sometime between 1901 and 1911 (they appear on the 1901 census, but not on the 1911 census). Do you know about when and/or where your William Mahoney and Catherine McCarthy married?