I found this link today, the diaries and photographs of James Nicoll Kerr Henderson, written and taken during his travels in the Cairngorms 24th - 29th July 1932.
The downloadable .pdf files include maps of the route taken...
http://www.electricscotland.com/travel/tours/tour25.htm
The downloadable .pdf files include maps of the route taken...
http://www.electricscotland.com/travel/tours/tour25.htm