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www.childers-shepherd.org, 14 Dec 2007
                                            Adoniram Allen II
             
  15 January 1782 - 12 November 1846

Adoniram Allen II was "a well-known hunter and guide. On July 28, 1835, he and William Wilson
guided Professor Mitchell to the summit of what is now known as Mount MItchell the highest peak
east of the Mississippi River." - Richard Riddle,
Riddle Newsletter, Vol. 8, Issue 2

For a more detailed account, see:

  
"Guide for Dr. Elisha Mitchell"
    by Richard Riddle, Riddle Newsletter, Vol. 4, Issue 2

Other source: Brent Bertram and Janice Allen Bertram, "Adoniram Allen II / Lucinda Riddle".