The Inscribed List, or, Why Librarians Are Crazy

What do Ludwig von Baldass, Theodore Rolly Ball, John Cawte Beaglehole, Guido van Deth, Fulvia de Cunto Fadigas, Dingle Foot, Rev. Daniel Parish Kidder, Thomas Strangeways Pigg-Strangeways, Franciscus Petrus Hubertus Prick van Wely, Walter Lytle Pyle, Hendrik Peter Godfried Quack, Lazar Shitnitzky, Elephant Smith, Preserved Smith, Increase Niles Tarbox, and over 2000 others have in common?

They are all real names of real people. They are all verified entries in library catalogs. They are all on The Inscribed List.