J. Walter Earle: Believer from the outset (1891)

Also at Type-Writer.org:

1. Dennis Duplex Writing Machine (1891) Ultimately, the mechanical typewriter proved fast enough, but, in the early days of the invention, a much faster machine was nearly always contemplated. This effort...
2. Brudenell Carter: An early adopter (1888) One wishes the following dwelled more on Brudenell Carter’s early use of the Type Writer, but there are some interesting details. Journal of the Society...