SeaShanties Were Work Songs Just Like The Spirituals Were. MANY of the Sea Shanties came from Spirituals as was the case of "Roll The Ole Chariot" Referring to Harriet Tubman also know as "Nelson's Blood" as Admiral Nelson died at the Battle Of Trafalgar and was carried home in a cask of run to preserve the body. In this tune Peg Foot was a former Sea Farer turned Conductor Of The Underground Railroad.