Who is Jean-Marie Michaud from Suite Franaise and what is their importance?

Jeanne-Marie Michaud had been seriously injured in battle, when he was moved to a farmhouse by an officer who was trying to transport him to a hospital in Blois. The farm family that cares for him, views their efforts as an offering toward the safe return of their own son. Jean-Marie goes in and out of consciousness, but he is a good patient. When his health improves, he wants to help on the farm, but the older farmers will not let him, so he enjoys his time in nature, writing about his experiences. Jean-Marie is described as a good-hearted man, who appreciates his life and everything around him.