Ironically, the John M. Flowers and Sally Pace marriage record was the first record I found when I entered their names on Family Search. They were married in Hickman, Tennessee in 1884. It appears they had two children: Walter C Flowers, b. 1887 in Tennessee, and James W Flowers, b. 1890 in Tennessee. John appears to have died between 1910, when he's listed in the 1910 census with Sally (who is now going by "Sarah") and son James. Son Walter is found in the same census living in the same town, married to a woman named Rice F Flowers. They have a daughter, Elsie, born in 1910. Their trail grows cold after that.
Sally (again going by Sarah) is found in the 1930 census living with son James and his wife, Alma, and their son, James L. James the father is a farmer, he and his parents and wife were all born in Tennessee. James L was born in 1919 in Mississippi. Sally/Sarah is listed as a nurse to a private family. She's a widow. She disappears after that census. Perhaps she remarried?
Ida James is interesting. She was born on the 16th of February in 1899 to Sarah Beams James and her husband, Patterson James. Both Sarah and Patterson are full blooded Choctaw Indians. Sarah's parents are Billy and Hannah MNUK (maiden name unknown) Beams. Patterson James was born to Pe-sa He-ka-be and Sally Ann James. The Dawes Rolls are available and searchable online at the National Archives: http://www.ourarchives.wikispaces.net/Dawes+Rolls. If you type "Dawes Rolls" into Google, many interesting links come up. I actually subscribed to Fold3 for one month (only about 12 dollars) to get the information from the rolls for Ida and her family. If you've never subscribed to Fold3, they have a free two week subscription option that lets you access everything for free for two weeks and then you get the option for a paid subscription. You can download the images you find onto your computer, which is nice, and save them to Ancestry if you have a tree. Sarah and Patterson had 4 children, three of whom are enrolled to the Choctaw nation. All of Sarah and Patterson's parents and they and their children are from Wade County, Oklahoma.
Patterson James is gone from the lives of Sarah and her children by 1908 when she married Noel J Armstrong, another Choctaw Indian.
I can't find Sarah or Sally Pace or Flowers in the Dawes Rolls. I also can't find when or where she or John M. died.
I'm sorry I couldn't have been more of a help than this.