Interesting Historical Photo

Here, we have a rather interesting historical photo.  It's controversial, because the 5-pounder smooth bore cannon was generally considered to be obsolete by the time the regional unpleasantness of 1861-1865.

What I find interesting is the Grumman F14 making a low pass behind the officer.  It's interesting because no records exist of either army having an air force during that time.  (But, this may have been naval aviation).  We can be fairly certain that it's not photo-shopped because photoshop didn't exist at the time this photo was taken.

This certainly bears more research.