RE Confederate Museum. I visited it last winter. IIRC it is on relatively high ground, probably higher than the nearby D Day museum, and the displayed exhibits are all in one rome on the upper floor of the building. There was a lower level, closed to the public where they may have more stuff in storage but at least most of their stuff (which was interesting) should stay dry.
One comment in a prior thread claimed the D Day museum was near Jackson square. That's not at all true. Jackson square is on east end of the French Quarter (which starts east of Canal street.) D Day museum is west of the warehouse district, probably further west of Canal street than Jackson Square is east of it.
The big NO casino is at southern end of Canal Street, near the Mississippi levee.
IF the Corps can plug the canal and/or levee breaches and stop the ongoing flooding with airdropped sandbags somebody needs to note when they started dropping them. I've yet to see or hear any reports that they have started. Reports of the breaches were first reported early this AM. I know I posted on them before 2AM and they'd been reported, at least as rumors, well before then. How many hours did it take to start the attempted plugging? Breeches were a predictable risk, by far the most severe risk whenever a hurricane threatens NO. In the 1993 upper Mississippi river flood nearly every levee between Davenport and St. Louis was breached, but some took days to go. Those in charge of the levees, which a Corps officer was quick to stress just after the storm passed was NOT the Corps, but rather local officials, should have been monitoring the levees as the highest priority. There should have been plans to reinforce any threatened levees at the first sign of trouble that took into account the likelihood of trouble getting around town. They should have been ready to try air drops and started them as soon as the breech was localized. Delaying in plugging the leak will greatly delay restoring the city to normal. I'm afraid NO's emergency "plans" had no breeches! If they did identify and evaluate the breech promptly and determined there was not chance of fixing it before the water reached equilibrium than they should have announced the inevitable worse right then and started evacuating everyone.
Jackson Square is smack dab in the middle of the French Quarter, right off the Mississippi river. D-Day museum is in the Warehouse district, right off Lee Circle, about 10 blocks west of the Quarter.