Here's a handy state-by-state roundup of when each Southern state marks its Confederate memorial day.
Love this journalistic vim: "Like Memorial Day, the origins of Confederate Memorial day — where it started and when — are murky." This is slacker murk since we actually can look up the dates on which the commemorating legislation was passed in each state. That would at least give us statutory origins.
Why, I could do so myself on the Web if it were'nt time for a stretch and some coffee.