Ellen Edwards’s mother was a Cotter and related to Bishop Cotter.
(https://en.wikipedia.org/wiki/William_Cotter_(bishop)#References
William Cotter (bishop) - Wikipedia)

The grandmother (“Nellie”) of my Internet friend, Brendan Sisk, worked for Ellen Edwards for many years.
Ellen may have been known as “Lillian”.
She was born in Philadelphia.
Both her parents died of TB. She lived briefly in NJ and then was sent back to Cloyne at an early age.