Who is John Ingles from Follow the River and what is their importance?

John Ingles was Mary's youngest son. He was the first account of Mary's ordeal. It is worth ntoing that John doesn't include any information about the daughter Mary had along the trail on the way to the Indian village, but Thom explains that in his opinon, Mary was ashamed and saddened at leaving the child, thus, she didn't speak of it.