There is a good book called Marie Anne written by Grant McEwan which gives the story of Marie Antoinette Lagimodiere's life with Jean Baptiste Lagimodiere. In it, there are mentions made of Josette and some incidents written in more detail. How much is truth and how much is elaborated on to make the book interesting we can only guess. But it is interesting reading and about the only source I have found with info on Josette. It is interesting to note that Marie Anne named one of her children Josette.
Does anyone know where I can get the book called "Mine Inheritance" which is also the story of Marie Anne Lagimodiere?