The episode art is a photo of Captain Quentin Rankin. 

Sources: 

https://www.jstor.org/stable/pdf/42623074.pdf?refreqid=excelsior%3A0f01556869dc2ae5dde5e55ddcca760d&ab_segments=&origin=&acceptTC=1

https://www.findagrave.com/memorial/38958189/quintin-rankin

https://www.findagrave.com/memorial/60374168/robert-zachary-taylor

https://www.tnmagazine.org/reelfoot-lake-dark-history-night-riders/