The sheet music for "Everybody's Dixie" Wildlone has posted is at Historic American Sheet Music, 1850-1920 (from Duke University) as:

The War Song of Dixie [The title on the music page, however, is "Southrons, Hear Your Country Call You."]
Words by Albert Pike; Music by J.C. Vierick [written "J.T. Viereck" on the music page]
New Orleans, Louisiana, P.P. Werlein & Halsey, 1861

~Masato