The correct answer to this open question is the following.
The type of people that settled in the Lorenzo de Zavala colony was people from the region of Texas and some others who had some ties to Stephen F. Austin when he started to bring American people to settle this part of southern Texas.
They settle in his colony after Lorenzo de Zavala received the grants from New Yorkers' capitalists' investors on March 12, 1829.
The two important facts about his colony were that it was established in a region barely inhabited by Mexicans and that his original idea was to wait to overthrow the Mexican government led by a dictator to have this part of Texas as Mexican territory in a democratic country.
The reason he is an important empresario is that he had an important sum of money to invest and knew how to negotiate with American investors to increase the sum of money that they granted to settle in southern Texas.