 Other slaves joined the Texan forces, with some killed while fighting Mexican soldiers.Three slaves were known to be at the Battle of the Alamo; a boy named John was killed, while William B. Travis's slave Joe and James Bowie's slave Sam survived to be freed by the Mexican Army.The Section 9 of the General Provisions of the Constitution of the Republic of Texas, ratified in 1836, made slavery legal again in Texas and defined the status of slaves and people of color in the Republic of Texas.