Mary Gabriel worked in Washington and London as a Reuters editor for nearly twenty years. She is the author of two previous biographies, Notorious Victoria: The Life of Victoria Woodhull, Uncensored, and The Art of Acquiring: A Portrait of Etta and Claribel Cone. Gabriel was educated in the United States and France, and lives in Italy.

While Marx dreamed of revolution to empower the masses, his own wife and daughters slaved and suffered to keep the family afloat says biographer Mary Gabriel.