After discovering Civil War era bullets near their Virgnia home, businessmanTom Liljenquist and his sons, Jason, Brandon, and Christian developed an interest in the conflict. They began collecting Civil War ambrotype and tintype photographs of ordinary soldiers in the mid-1990’s. In 2010, the family donated more than 700 photographs of Union and Confederate soldiers to the Library of Congress.  The Last Full Measure: Civil War Photographs from the Liljenquist Family Collection is a Library of Congress exhibit of 379 of these images. American History TV met Tom Liljenquist and two of his sons at the exhibit to learn about the images. We also talked to Helena Zinkham, Chief of the Prints and Photographs division, and Cheryl Regan Exhibition Director at the Library of Congress.