Hello Debbie, Thanks for writing back so quickly. Although I have yet to totally confirm that Louis Napoleon Duman is my husband's great grandfather, I am sure this is the same family. My husband's family is from Cheboygan and I am trying to piece all of the Duman's and Metivier's together in that area. His grandmother Ivene Marie Duman married Joseph Metivier in 1924. Her father's name was Louis Duman and her mother's name was Jennie Elliott, so the pieces seem to fit pretty well.
I look forward to hearing from you again to further discuss this family. I hope the information I have provided has fit into your family tree as I believe it will. Thanks again for your time. Cheryl