The ranch was located far enough away from Mexico City, avoiding the same destruction seen in the capital during the Great War. The Hidalgo Ranch was home to three generations of Tejadas. After the Great War, refugees from Mexico City began to pass by the ranch in droves. The Tejadas helped as many people as they could but eventually had to stop before they themselves ran out of food.
Raul and his father armed themselves and drove the refugees away from the ranch. That night, a group of refugees came back to the ranch while the Tejada family was asleep and set the house on fire. The resulting fire killed Raul's parents, grandmother, three brothers, and two sisters. Raul and one of his sisters, Rafaela, managed to escape.
Hidalgo Ranch is mentioned only in Fallout: New Vegas.