Hayes from Ballyhooley Co Cork

[annnoe]

Trying to trace my Grandmother Mary Hayes & her brother Thomas Hayes born Ballyhooley Famoy Co Cork round about 1880.Their  parents were Thomas Hayes who married Margaret Sheehan. something must have happened when mary & thomas were quite young as they were brought up by a neighbouring family called Cotter.Please does anyone have any info on Thomas Hayes snr and or his wife Margaret Sheehan.Any news would be grateful as I am at a standstill at the moment with this line of my family tree.
Thanks for taking the time to read this plea,and hope someone out there may be able to help me.
Regards,
A Berry