According to the sheet music at Duke University, the composer's name is Lang, not Long.

You can hear two recordings of IN THE SHADOW OF THE PINES—one by Vernon Archibald and Royal Fish (1913) and the other by Byron G. Harlan and Frank C. Stanley (1903) at The Cylinder Preservation and Digitization Project.

You can hear another recording by the Fiddling Doc Roberts Trio at Honking Duck.