The publisher, Farrar & Rinehart, shepherded the project through four editors, and the publisher's evolution to Rinehart & Company and later Holt, Rinehart and Winston. The editors of the series were Constance Lindsay Skinner, who died at her desk editing the sixth volume in the series, Carl Carmer, who wrote the sixth volume in the series, Stephen Vincent Benét, and Hervey Allen. Associate editors were Elizabeth L. Gilman and Jean Crawford. The art editors were Ruth E. Anderson, Faith Ball, Benjamin Feder, Philip Fiorello and Lawrence S. Kamp.