My bro is actually the Civil War expert in our family, but I'll take a crack at it.
-1. What southern city refused to celebrate July 4th, Independence Day, for almost 60 years, because it fell to Union forces on that day after a 47 day siege?
-2. When the Federal government confiscated Mrs. Robert E. Lee´s ancestral mansion where the Lees lived before the war, what use was made of the property?
-3. An estimated 627,000 soldiers died in this war. What was the most common cause of death?
-4. Which Union general was known as "Little Napoleon"?
-5. What was the name of the man that was hanged after the war for his activity at Andersonville Prison?
-6. What disease did President Lincoln contract right after the Gettysburg Address?
-7. Who said, "D**n the torpedoes! Full steam ahead!"
-8. What famous ridge was Gen. Longstreet ordered to attack at Gettysburg in which he delayed?
-9. What physician-inventor devised a weapon for the Union army, which used only twelve of them, that was the prototype of the machine gun?
-10. What was the popular name for the US Rifle, Model 1855, a shorter version of the Rifle Musket of the same year?
-11. Who was an instructor at Virginia Military Institute prior to the war?
-12. What was the first capitol of the Confederate States of America?
-13. "To realize what war is, one should follow our tracks." Who said that on what occasion?
-14. For what Civil War battle was the first African American awarded the Congressional Medal of Honor?
-15. Which battlefield besides Gettysburg contains an Irish Brigade Monument?
-16. Which Amendment to the Constitution provided for the abolition of slavery?
-17. Where did the largest cavalry battle of the war take place ?
-18. As the peace treaty was being signed inside at Appomattox, what tune was the Brass Band playing outside?
Hints:
-#1. Think Mississippi...
-#10. Also the name of a town in West Virginia chosen by George Washington as the site of an armory, and the site of a Civil War battle. H------ F----
-#11. He was accidentally shot by his own Confederate pickets at the battle of Chancellorsville, and died eight days later.
-#13. His "scorched earth" campaign ended in Savannah.
-#15. Also known as Sharpsburg...
-#19. An ironic choice that you might also hear on New Year's Eve
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Alea iacta est.