Silent Legacies

Who killed the Reverend Horatio Howell, a minister from Delaware Water Gap and chaplain to the 90th Pennsylvania Regiment, during the Battle of Gettysburg? Why would a Confederate soldier intentionally shoot a Union chaplain? Three veterans of the 90th Pennsylvania, all survivors of the battle, travel to Gettysburg in 1913 for the 50th reunion of that three-day fight. Will they meet the rebel who felled their beloved chaplain, and if they do, how will they react?