Odds and Ends
They did their best
31 8, 7:33pm
"These statues were erected very recently."
"The United Daughters of the Confederacy (UDC) is an American hereditary association of Southern women established in 1894 in Nashville, Tennessee."
I don't think that very recently is something that has happened over 100 years ago. Most obvious explanation for 30 year delay would be that at that time veterans would have started dying from old age.
"The confederates themselves felt they should not get statues."
Lee had a lot of authority among veterans, but he wasn't all of them. If I remember correctly, at least some of the markers at Gettysburg were requested by still-living participants of the battle from Southern side.