Jerimiah Johnson's indian wife's Flathead Indian name

From everything I've seen at Wikipedia and imdb, there is no info on the Indian version of Swan's name.

The character was played by a woman named Delle Bolton.

http://en.wikipedia.org/wiki/Jeremiah_Johnson_%28film%29

http://www.imdb.com/title/tt0068762/

http://www.amazon.com/Jeremiah-Johnson-Robert-Redford/dp/B000W1SZBS

Here's an interesting blog about Belle. Be sure to read the comments - you may have a way of contacting her to ask her if she knows the Indian name for Swan.

http://www.stephenwbrowne.com/2011/06/who-is-delle-bolton-and-what-happened-to-her/