Abraham Lincoln (February 12, 1809 - April 15, 1865) was the sixteenth President of the United States. As Commander in Chief of the United States, he led the Union during the Civil War. On April 15, he was shot in the back of the head at Ford's Theater by John Wilkes Booth. Lincoln died shortly thereafter. This envelope likely references the Honorable Sir Edward Pakenham GCB (March 19, 1778 - January 8, 1815), who was the commander of British military forces in North America during the latter portion of the War of 1812. He was killed at the Battle of New Orleans.