Also this account taken from the Southern Historical Society Papers regarding the Battle of Shiloh.

"During these last charges General Beauregard led in person, carrying the battle flag of the Crescent Regiment. Even such a noble example could not restore the lost forces of officers and men, and by common consent the battle ended."

From everything I've read the Crescent carried the same flag all the way through the war. If these accounts are true then two Generals carried the same flag. Probably pretty unusual I would guess.