Revolutionary leaders at Vera Cruz . The photo shows a group of the leaders of the Mexican revolution shortly after the entry of De La Huerta into Vera Cruz . Back row , left to right : Deputy and State Governor San Luis Fotosi Prieto Laurens , President of the Cooperatista Party Gen Marlano Montero Villar , Gen Guadalupe Sanchez , Adolfo de la Huerta , General Marcial Cavasos chief of the advance forces of General Obregon , who rebelled and joined de la Huerta . The last two in the back row and all in lower row are staff officers . 19 January 1924