The Story of Gregg Shorthand as Told by John Robert Gregg at the Silver Jubilee Convention of the Gregg Shorthand Association, Chicago, August, 1913
The Story of Gregg Shorthand. Based on the Writings of John Robert Gregg. Edited by Louis A. Leslie. [With Illustrations, Including Portraits.].
Sténographie Gregg, collection du 75e anniversaire [par John Robert Gregg, Louis A. Leslie et Charles E. Zoubek. Trad. et adaptée par] soeur Marie-Ernestine
The Fortieth Birthday of Gregg Shorthand (published 28th May 1888): Report of Proceedings of the Annual Conference of the National Gregg Association, 1928, and of the Banquet Given in Honour of Mr. and Mrs. John Robert Gregg. Reported Verbatim in Gregg Shorthand
Stňographie Gregg, collection du 75e anniversaire [par John Robert Gregg, Louis A. Leslie et Charles E. Zoubek. Trad. et adaptě par] soeur Marie-Ernestine
The Stenographic Expert. For Writers of Gregg Shorthand. By W.B. Bottome ... in Collaboration with John Robert Gregg
Gregg Shorthand Manual Simplified. ([By] John Robert Gregg, Louis A. Leslie, Charles E. Zoubek, Ernest W. Crockett.).