Alamo cannon Dr. Chris Dostal (IMAGE) Texas A&M University Caption Texas A&M anthropologist and nautical archaeologist Dr. Chris Dostal, swabbing the bore of the Alamo cannon. Credit Courtesy of Alamo Trust Inc. Usage Restrictions use with credit License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.