1850-1900: Intermarriage – decline in “persons with mixed Spanish-Anglo surnames” as an index of decline in intermarriages or “blending into white society” generally:
Indeed, other evidence suggests that the urban Tejanos resisted adopting an Anglo American way of life with equal or greater intensity than their compatriots in the countryside….
First, an analysis of the persons with mixed Spanish-Anglo surnames shows that this group, taken as a component part of the Tejano population, declined in the years between 1850 and 1900. The presence of persons with mixed surnames is indicative of a propensity toward structural assimilation since such surnames would result from a variety of Tejano behaviors aimed at blending into the white society. Such behaviors may have ranged from intermarriages or interethnic sexual relations to simply modifying one’s name to better fit the Anglo mold. What statistics show is that the extent of such assimilating behavior decreased. In 1850, for example, for every 100 persons in urban environments with Spanish surnames, there were 14 with mixed Spanish-Anglo surnames. By 1900, this number had dropped to just 3, and in rural areas the trend was the same. Thus, to the extent  that mixed names resulted from conduct aimed at merging into white society, then resistance to such behavior increased both in cities and in rural settings during the nineteenth century.
Arnoldo de León and Kenneth L. Stewart, Tejanos and the Numbers Game: A Socio-Historical Interpretation from the Federal Censuses, 1850-1900 (Albuquerque: University of New Mexico Press, 1989), 88-89.
- There were 11 persons with mixed Spanish-Anglo surnames for every 100 Spanish surnames in rural areas in 1850. By 1900, the number of mixed surnames dropped to 1 per 100 Spanish surnames. Admittedly, other factors such as the leveling out of the sex ratio among Anglos between 1850 and 1900 may have influenced this decline in the number of mixed surnames. Nonetheless, we take it also to be an indication of the increased degree of resistance to assimilation on the part of the Mexicans of Texas.↩