Juan Jose Erasmo Seguin was a postmaster, businessman, and politician in modern day San Antonio, Texas.
Erasmo Seguin was one of the notable creators of the Mexican United States' Constitution of 1824. It upheld policies such as outlawing slavery in Mexico, Catholicism being the official religion, large land holders having the ability to become barons, and the region of Texas being able to petition for its own independent statehood in the future.
He personally advocated for: the allowance of immigrants into the Mexican territory, the lessening of slavery restrictions, the ability for the region of Texas to become its own colony, and the law allowing for state governments to grant land to empresarios (a person responsible for an area of land and for bringing in new settlers), who in turn could give land to colonists.
