Eugene O'Neill very consciously encased his great play, Mourning Becomes Electra, within the patterened shell of the Greek Electra myth, in a loose parallel of Aeschylus' timeless tragedy, The Oresteia. Only O'Neill set his work in post-Civil War New England among a Yankee aristocratic family, the Mannons. Lot's of Oedipal subtext! Read O'Neill's play...all the answers are there! Really.