In reading Jason Borger's blog, http://www.jasonborger.com/ , I came to know of George Croonenbergs.


You may have never heard of George Croonenbergs, but he was instrumental in the filming of The River Runs Through It. Geroge, who passed ion September, 2005, was a close friend to Norman and Paul Maclean. He was taught to tie flies and fly fish by Reverend Maclean. With his intimate knowledge of the Macleans and the time period, he was an advisor to Robert Redford on the set.


John Maclean, the son of Norman Maclean remembers George Croonenbergs:


http://johnmacleanbooks.com/george/