Hi Devon,
Thanks for taking the time to write to us here! Your potential link with the legendary high king of Ireland sounds really interesting
As I'm not familiar with genetic genealogy, I can only suggest resources based on your last name and any other information you could find on your father's side.
The name Maher is often found on the
church records in Ireland, but you'd need an approximate year or county to potentially learn more about your family tree. Here are
more resources that could be of use, such as the
ship records, since you are based in the US.
Best of luck!
Antoine