We had the good fortune to spend this Halloween weekend in New Orleans. I took a bunch of garden photos to share with you later, but since this is Halloween, let’s look at something a little spookier. We walked through Lafayette Cemetery No. 1. According to www.saveourcemeteries.org, this is the oldest of the seven municipal, city-operated cemeteries in New Orleans. This is not the oldest cemetery I’ve visited, but might be the most interesting. The city is built on a swamp, so the…