Hi. I am descended from Cummins family of Creagh. However, in the 1820s parish register of Skibbereen and Rath parish, their name is Cummane.
Below are four baptismal entries from the parish register of Skibbereen and Rath parish for children born to Patrick Cummane and Joan Driscoll. These were sent to me by a researcher at the Skibbereen Heritage Centre. ... I believe Mary is my great great grandmother, and her sister Ellen married a man named William Haley. The Haleys emigrated to Sullivan County, New York, in the late 1840s (1848, perhaps) and my great great grandmother followed a few years later, in 1852 or '54.
John Cummane baptised on June 4th, 1820, Townland of Creagh
Andrew Cummane baptised on Jan 1st, 1822, Townland of Creagh
Ellen Cummane baptised on Jan 25th, 1824, Townland of Creagh
Mary Cummane baptised on Oct 1st, 1826, Townland of Creagh
Best wishes, Tom Leek