I am also researching these families.
Do you have any information of Mary Mullins (1830-1899) who married William Flowers (abt 1829-1916) in TN?
Did you find a headstone for their daughter Mila Curry (1862 TN- 1938 IL) She married several times; James Tiefertiller, his brother, Thomas Tiefertiller, Charles Buckles and George Curry. I have found records for all the marriages except George Curry. Mila is buried in Harrison Cemetery.

I think Iven M Flowers may be the son of William H. Flowers (son of Marion Flowers, son of William & Mary) and Victoria Rogers Kirkpatrick Flowers