It grew exponentially in this period because in the aftermath of the second world war, there was a baby boom as a result of numerous young couples created by high amounts of returning soldiers.
Taxes.
The tax burden in France, prior to the French Revolution, fell on the shoulders of the 98% of the population that made up the Third Estate. The First Estate consisted of the clergy, and the Second Estate was the nobility. Those two estates overlapped in some ways, because high ranking church officials functioned as a form of aristocracy too. And the two leading Estates colluded with one another to keep the system operating the way it was, with them having all the privileges and powers underneath the monarchy.
Houston was soon citing the need for military action against Mexico, and in 1835 was appointed major general of the Texas army. Houston made peace with the Indians of the region so the Texians could focus on their push for Independence without distraction. Soon he would organize the Republic of Texas's first army.