Seeking advice or experience...my local museum stumbled across handwritten lyrics written by Tom Dula in 1862 as a Confederate soldier, donated outright to the museum circa 2005 by a distant relative. Just about every week we get visitors interested in the Tom Dula story because of the folk song "Hang Your Head Down Low Tom Dooley" recorded by the Kingston Trio. Doc Watson and even the Grateful Dead recorded the song.
How do we copyright this song? Should we do this? As a small museum, any suggestions or thoughts if we could possibly (or should) try to make some money off the song? I'm not sure exactly how this would work or what is appropriate. Any advice or feedback welcomed.