Edward Oswald, Jr.

Historical marker location:

251 Prospect Ave, Hagerstown, Maryland

( Marker is on Prospect Avenue just west of Oak Hill Avenue, on the left when traveling west.)

The Battle of Antietam was one of the bloodiest battles of the Civil War: The Battle of Antietam, which took place on September 17, 1862, was one of the bloodiest battles of the Civil War. More than 23,000 soldiers were killed, wounded, or missing after 12 hours of fighting. The battle is considered a turning point in the war, as it gave President Lincoln the opportunity to issue the Emancipation Proclamation.