When Lincoln found that his fourth written copy could not be used, he wrote a fifth copy. The Bliss Copy was named for Colonel Alexander Bliss, Bancroft's stepson. It is not known if Lincoln made any more copies. Lincoln wrote this copy with much care. He gave it a title—"Address delivered at the dedication of the cemetery at Gettysburg"—and signed and dated this copy. In fact, it was the only copy of the Gettysburg Address he signed. Partly because of this, it has become the most well-known version of the Gettysburg Address. It is the source of most modern copies of Lincoln's Gettysburg Address.