Dont waste time with the papers they will only massarce the events by highlighting silly issues. The guy needs a proper biographer and a publisher. Try the major publisher east african publisher etc or just check the kenya publisher association website for other publishers
http://www.kenyapublishers.org/members.html
Once have gotten a publisher they might suggets an author or if the notes dont need alot of work an editor will have a look and they can get the old man to make a few changes.
The mzee needs to get some money for what can easily be a very beautiful story of written well.