Moira O'Neill was born in Cushendun in the Glens of Antrim. Her Songs of the Glens of Antrim and More Songs of the Glens of Antrim were very popular and ran to many editions. She also published An Easter Vacation and The Elf Errant, and her collected poems were published in 1933. After a period living in Canada, she returned to Ireland to live in County Wicklow, where she died. She was the mother of Molly Keane the novelist.