Margaret O'Rourke was born in 1873 at Seaham, New South Wales, Australia. She was the daughter of Terence O'Rourke and Jane (née Hough) O'Rourke.

Margaret married Edward Darcy 04 July 1893 at St Bede's, Morpeth, New South Wales, Australia.
They had 12 children:
William Cecil Darcy (1894-1953)
James Leslie "Les" Darcy (1895-1917)
Edward Francis Michael Darcy (1898-1898)
Edward Francis "Frank" Michael Darcy (1899-1919)
Sarah Mary Pearl "Pearl" (nee Darcy) Fogerty (1900-1954)
John Mervyn "Jack" Darcy (1902-1996)
Edward Vincent Darcy (1904-1990)
Murial Margaret (nee Darcy) Atkins (1907-1989)
Imelda Mary Lillian (nee Darcy) O'Brien (1909-1984)
Kathleen (nee Darcy) Farnham (1910-1959)
Lawrence Reginald Darcy (1912-1912)
Joseph Albert "Joe" Darcy (1915-1989)

Margaret (O'Rourke) Darcy died 11 May 1929 at East Maitland, New South Wales, Australia.

Obituaries
The Maitland Daily Mercury (NSW: 1894 - 1939) 14 May 1929:
OBITUARY: LATE MRS. MARGARET DARCY:
The funeral of the late Mrs. Margaret Darcy took place on Sunday afternoon, and was largely attended. The Rev. Father Murtagh officiated at St. Joseph's Church, and at the vault in East Maitland cemetery.
The late Mrs. Darcy was a native of Seaham and 57 years of age, being a member of the O'Rourke family, pioneers of that district. She is survived by her husband, four sons, and four daughters, Cecil, John, Edward, and Joseph, Pearl, Muriel, Lily, and Kitty Darcy.

"Maitland Diocese" The Catholic Press (Sydney, NSW: 1895 - 1942) 16 May 1929
Maitland Diocese:
Mrs. Margaret Darcy, mother of Les Darcy, the one-time boxing champion, died at her residence, Emerald-street, East Maitland, on the 11th inst., after a long illness, following a stroke.
A native of Seaham, she was 57 years of age, and spent the greater part of her life in the Maitland district, where she was held in general esteem. She was a devout Catholic, and took a very active part in all parochial movements up to the time of her illness.
The death of her famous son, Les, was a great blow to her, but the beautiful home in which she lived, his gift to her, was always a consolation to her, and a reminder of his splendid devotion to her as a son.
She is survived by her husband, Mr. Edward Darcy, four sons, Cecil, Edward, John and Joseph; and four daughters, Pearl, Lily, Muriel and Kitty.
The funeral was very largely attended, Rev. Father Murtagh officiating at St. Joseph's Church, East Maitland, and at East Maitland Cemetery. R.I.P.