I have not had time to confirm this, but I think John Seelye included a
sequence of Twain/Keller images at Stormfield in his book MT AT THE MOVIES.
I think I have the first three in that sequence. I'm not able check at the
moment, but let me know if you need better images that what Seelye produced.
Keller's later autobiographies also have some images of her with Twain.

Kevin Mac Donnell
Austin TX