For the 1970 (7th) edition, Sarah Corbin Robert, then the preeminent parliamentarian in the United States, was the principal author. She was assisted by Henry M. Robert III and William J. Evans, who completed the work and, later, also prepared the 8th edition. For the 9th edition, Daniel H. Honemann was added to the team. Thomas J. Balch was added to assist in writing the 10th edition, and, following the death of William J. Evans in 2007, Daniel E. Seabold and Shmuel Gerber were added to assist in the authoring of the 11th and 12th editions.
