Mary Devenport O'Neill (3 August 1879 – 1967) was an Irish poet and dramatist and a friend and colleague of W. B. Yeats, George Russell, and Austin Clarke.
Mary Devenport O'Neill, née le 3 août 1879 et morte le 1967, est une poète et dramaturge irlandaise, amie et collègue de William Butler Yeats, George William Russell et Austin Clarke. (fr)
Mary Devenport O'Neill (3 August 1879 – 1967) was an Irish poet and dramatist and a friend and colleague of W. B. Yeats, George Russell, and Austin Clarke. (en)