Hello I am researching my grandfather's maternal side of the family and I have little information on it. His mother was named Mary O'Neill and she was born in 1907 in Ireland. She married a Roger O'Gara, Sr. who was born in 1906 in Ireland and previously married to a woman named Bridgett. Mary's mother was named Josephine and was born in Ireland in 1885. I have no clue who she married.

Any additional help would be wonderful!