The Spanish crown granted the land to Juan José de la Garza Montemayor and his sons Agustín, Perfecto, and Manuel on April 2, 1807.
However, local legend has it that the Montemayor family was driven away by a band of outlaws, who in turn were forced out by hostile Indians.
In 1896, Casa Blanca-Wade City had a combined estimated population of 150, a Methodist church, a general store, a gin, and a lumberyard.
The petition was granted, and Wade City reverted to pastureland; Casa Blanca continued to be an independent community, but by 1945 only ruins remained.
In 1945, the state attempted to use eminent domain to dam more of the Nueces River, an action which was fought until 1955, at which point the state prevailed and was able to dam the river to become the water supply for Corpus Christi, thus flooding and making unusable a little over 2,600 acres (11 km2) of the 10,000-acre (40 km2) Wade Ranch.