*San Antonio de Bexar had been captured by Texan forces in December 1835. The Alamo mission had 21 pieces of artillery and most of them were installed on the walls by chief engineer Green B. Jameson. When Jim Bowie arrived on January 18, 1836, he saw the Alamo as a necessary buffer between the Mexican army and the Texan settlements to the north.
"ALAMO, BATTLE OF THE," Texas State Historical Association, www.tshaonline.org/
"13 Days of Glory," The Alamo: The Shrine of Texas Liberty, www.thealamo.org/