Leer on Family Tree Circles

I am searching for information on my great grandmother MARY MOONEY born about 1875, daughter of PATRICK MOONEY, I am unsure of her mother name.

MARY married EDWARD JOHN MANGAN on May 5 1895,(one of the witness at their wedding was OWEN MOONEY unsure how he is related), they lived in Dublin, EDWARD worked for Guinness as a labourer and went on to have 6 daughters ELIZABETH (1896), FLORRIE (1899), CATHERINE (Kitty)(1901), NELLIE(my grandmother) (1904) ETHEL(1906) and MAY/MARY. They later owned a shop in Mary's Lane, Dublin.
EDWARD passed away in 1947 and MARY passed away in 1949/1950.