I have a Walsh in my tree but have had no luck in tracing fammily memebers.
Micheal Fitzpatrick ( gggGrandfather) and Mary Walsh of Cartron baptised a son William Fitzpatrick on jaunary 23, 1861 in the Parish of Kilcoleman.

Other notes: There was a James Morrow Walsh born 1843 at Prescott Ontario, Canada to Lewis Walsh and Elizabeth Morrow. He came to Fort Walsh, Saskatchewan, Canada and fought a great battle with the natives. This place has lots of hitory and also a town named Walsh.