Hope these may help with a family connection.
I have a Denis Kennefick born to John Kennefick and Mary Ann Scannell on 3rd Dec 1876 in the district of Douglas/Ballygarven/Killanully.
David Scannell witness to marriage of Patrick Ahern and Ellen Kennefick 28th Feb 1878 in the district of Tracton/Kilpatrick/Nohoval/Kinure.
Honora Scannell second witness to the marriage of Philip Kennefick and Johnana Long 12th Feb 1834 in district of Carrigaline/Crosshaven.
Dennis Scannell first witness to baptism of Thomas Kennefick 26th Oct 1842, third? child of Thomas Kennefick and Bridget Twomey in the district of Passage West/Monkstown/Barnahely.
Con (presume Cornelius)Scannell first sponsor to Margaret Kennefick born 8th Jan 1848, first daughter to Patrick Kennefick and Mary Connor in the district of Douglas/Ballgarvan/Killanully.
Let me know please if theres any connection however slim.