Hannan turned from the piano and said, winking at the others: "Mac thinks a Marxian is somebody who went to St Mark's school."
1934, F[rancis] Scott Fitzgerald, Tender is the Night: A Romance, New York, N.Y.: Charles Scribner’s Sons; republished as chapter V, in Malcolm Cowley, editor, Tender is the Night: A Romance [...] With the Author’s Final Revisions, New York, N.Y.: Charles Scribner’s Sons, 1951, book IV (Escape: 1925–1929), page 215