Samuel Blair, Alamo defender and officer of the Alamo garrison, was born in Tennessee in 1807. He registered as a single man for a quarter league of land in the Power and Hewetson colony on August 4, 1834. On September 10, 1834, he registered for a headright of land in James McGloin's colony. Blair took part in the siege of Bexar. He later served in the Alamo garrison as assistant to the ordnance chief, Robert Evans, with the rank of captain. He died in the battle of the Alamo on March 6, 1836.