The particular veterans are unidentified to me.
The time was July, 1913 and the place was the town of Gettysburg, Pennsylvania at the 50th Anniversary Gettysburg Reunion when 54,000 Union and Confederate veterans reunited.
The Great Camp, 1913, covering 280 acres.
Philadelphia Brigade Association and Pickett's Division Association, reuniting at the stone wall of the Angle.
Field of Pickett's Charge
The tone that characterizes Free Republic Civil War threads is much more akin to the 1861 tone of the fire-eating politicians that started the war than to the 1913 tone of the Civil War veterans that actually fought the war.