If you have some luck with your Maurice DINAN could you keep an eye out for someone called Margaret DINAN. Margaret married James HALLORAN and they had a daughter Bridget HALLORAN born Scariffe, Co Clare c1834-1839. Bridget is my gg grandmother; so Margaret would be my ggg gm.
Give or take ... Margaret DINAN would have been born c1800.
Colleen & Barrywww.barrylaidler.com