Who Was Who - 5000 B. C. to Date
Irwin Leslie GordonThe Enchanted Typewriter
John Kendrick BangsPunch, or the London Charivari, Volume 100, June 6, 1891
Various AuthorsThe Jargon File, Version 4.0.0, 24 Jul 1996
Eric S. RaymondThe Gem Collector
P. G. WodehouseSpeaking of Operations
Irvin S. Cobb