Encyclopedias, Almanacs, Transcripts, and Maps
- John Robinson Pierce
- John Rock
- John Roebuck
- John Snow
- John Stearns
- John Sydney Edkins
- John T. Parsons
- John Talafierro Thompson
- John Turberville Needham
- John Tuzo Wilson
- John Venn
- John Vincent Atanasoff
- John W. Mauchley
- John W. Young
- John Wallis
- John Wallis
- John Warcup Cornforth
- John Watkins Brett
- John Wesley Hyatt
- John Wilkins