Bob - I have tons of info on the Minihane/Minihan surname, and would love to explore this with you further. Back in the early 1800s, my Minihane relatives were from areas around Baltimore and south of Skibbereen. There are also many Minihanes from Schull and Caheragh parish which are not directly related.
Please contact me at firstname.lastname@example.org
with specific info on your Minihanes from Skibbereen and I will check my research for you.
Barbara in St. Louis, MO