The series will feature guest speakers discussing topics ranging from 3-D Civil War photos to an 1861 murder on the B&O Railroad.

Unfit for Service: Solving the Mystery of a Gettysburg Photo. John Heiser, NPS ranger at Gettysburg, discusses how he located the site and the story of an image by photographer Alexander Gardner taken just days after the epic battle.

The talks are included with admission to the Museum or FREE for Museum members.