Marcela Terrazas y Basante, Ph.D., is a researcher at the Instituto de Investigaciones Históricas at the Universidad Nacional Autónoma de México (UNAM). Her most recent publications include Diplomacia, negocios y política. Ensayos sobre la relación entre México y el Reino Unido en el siglo XIX, which she coordinated and coedited with Will Fowler (2018), and “Violence, Collaboration, and Population Movements: The New United States–Mexico Border, 1848–1853,” in Mexico, 1848–1853. Los Años Olvidados, edited by Pedro Santoni and Will Fowler (2018).