Looking for any Sheehan family members of mine! Kanturk

Hello all!
 My name is Denis Sheehan I am from New York and I am currently in the process of putting together my family tree. My grandfather Denis Kevin Sheehan was born in 1921 in Kanturk to his Father who also was Denis Sheehan and mother Ellen Sheehan. I know my grandpa had 7 or 8 sisters he was the only boy! I also know my great grandfathers parents were named John Sheehan and Mary Mulcahay and it’s my understanding she may have went by the nickname “minnie” now that is more or less where my knowledge ends. It is my hope that maybe someone out there can help me learn some more! Or at the very least help point me in the right direction 

Thanks in advance!