Dear Marta, The following children of Martin Winn Davenport wound up in Madison County, Arkansas: 1. Harriet Louise, M. Reubin Lafayett Whitmire. 2. George Henry, M. Nancy Louisa Ledford. 3. Nancy , M. #1 James Ledford. 4. Martha Elizabeth, M. Miles Cobb Whitmire. Also, Joseph Martin married in Washington County, Arkansas then went to Baker County, Oregon. Martin Winn was the son of David Davenport and Dorothy Ann Baker. David was the son of Martin Davenport and Jane Browning. I don't find a James Isaac, Davis, or Ianthia in my files. At least you'll know, if you come across this group in your research, that they probably aren't the group your looking for. Good Luck, Lee