We did a presentation of "Songs of the American Civil War" at a National Folk Festival in Canberra many years ago. The programme was:

John Brown's Body
Lincoln and Liberty
The Bonnie Blue Flag (Original)
The Bonnie Blue Flag With the Stripes and Stars (Union version)
Dixie's Land (Original)
Dixie's land (Confederate version)
Dixie's Land (Michigan version)
Dixie's Land (Texas version)
Maryland, My Maryland (Original)
Maryland, My Maryland (Northern reply)
Battle Cry of Freedom (Original)
Battle Cry of Freedom (Confederate version)
Johnny is Gone for a Soldier (Shule a gra)
The Battle Hymn of the Republic
The Battle on Shiloh's Hill
In the Hills of Shiloh (This was the only modern song - I could not resist putting it in)
We are Coming, Father Abra'am
Lorena
Aura Lea
Just Before the Battle, Mother (Original
Just Before the Battle, Mother (Parody)
Year of Jubilo
Tenting on the Old Camp Ground
Goober Peas
Hard Crackers Come Again No More
Marching Through Georgia
When Sherman Marched Down to the Sea
Tramp! Tramp! Tramp!
The Yellow Rose of Texas (Original)
The Yellow Rose of Texas (Parody)
The Alabama
Oh, I'm a Good Old Rebel
When Johhny Comes Marching Home

It went over pretty well.