Answer:
The Anglo colonists, as the name implies, were people from the United States who were mostly of British descent. They can be divided in two groups: those who came from the neighboring Louisiana, and expanded the slave plantations in Eastern Texas, and those who came from Appalachia, and founded small farms in Central Texas.
The Tejanos were the original colonists of Spanish descent, who came from other parts of Mexico. They spoke Spanish, were catholic, and had ties to Latin America. However, they were also part of the independece movement in Texas, but many of them opposed the annexation of the state to the United States (this was supported en masse by the Anglos for obvious reasons).