GEORGETOWN, Del. — One of the proudest moments of Robert Eldreth’s life was erecting a Confederate monument on a patch of grass behind the Georgetown Historical Society in 2007. It was the first monument to Delawareans who had served the Confederacy, and the fact that it came 142 years after the end of the war hardly mattered.

“It’s a lesson in history,” said Mr. Eldreth, who led the group that put it up. “It’s about our roots and the sacrifices that those citizens here in Delaware made. To me that’s so honorable.”

But amid the furor over Confederate monuments, touched off by the violence in Charlottesville, Va., two weeks ago, an unexpected reality has largely been overshadowed: While old monuments erected in bygone eras are coming down, new ones continue to go up.

In Crenshaw County, Ala., a new monument to “unknown Confederate soldiers” was unveiled on Sunday in a private park. In the small East Texas town of Orange, a giant concrete ring of 13 columns, representing the states the Confederacy claimed as its own, is going up on private land at the intersection of Interstate 10 and Martin Luther King Jr. Drive. In North Carolina, a bronze statue of the Confederate general Joseph Johnston was installed at the Bentonville battlefield in 2010.