Mary McAuliffe PhD taught at several universities, and lectured at the Smithsonian Institution, the Barnes Foundation, and the Frick Pittsburgh. She traveled extensively in France, and for many years she was a regular contributor to Paris Notes. Her books include Clash of Crowns, Dawn of the Belle Epoque, Twilight of the Belle Epoque, When Paris Sizzled, Paris on the Brink, and Paris, City of Dreams. Mary sadly passed away in 2024.