There were 46,000-51,000 casualties combined in this battle. This battle had the most number of casualties in the Civil War. The Northern politicians gave up their idea of war prosecution. The soldiers who fought in this event were later honored in the Gettysburg Address. http://www.gettysbg.com/battle.shtml
This is also known as the Second Battle of Galveston. The Union tried to build a blockade to gain trade control. Despite their efforts, the Confederacy won and captured nearly 400 soldiers of the Union. http://www.lsjunction.com/events/galvestn.htm
The Txas Secession Convention took place in Austin, TX. Organized by Sam Houston after President Lincoln ordered warships.
A unanimous vote for secession by 46,129-14,697 people. http://www.lsjunction.com/docs/secesson.htm