James Morgans writes that Mexican government officials believed colonies of Freedom Seekers on the U.S. border would create a buffer against incursions by American settlers. They thought these escaped slaves would fight to the death against any U.S. troops invading Mexico. The Mexicans called the escaped slaves “Mascogos.” It has been thought that 3,000 slaves had escaped into Mexico by 1850. Another 1,000 fled to Mexico by 1855. Very ironic that Mexicans used to try and prevent U.S. citizens from crossing into Mexico.
To get across Texas was a very daunting trip. The Comanches and Apaches were likely to kill the fleeing bondsman or sell them to the Cherokee or Creek, who kept slaves or traded them back to the white slave master in Missouri or Arkansas.