Bernice, sorry to have taken so long to respond. Busy with life... Earlier this month I was at the Boone home in Defiance, Missouri. It is where Daniel died, and it belonged to his son Nathan and daughter-in-law, Olive VanBibber. From the ladies there I received several copies of linage/interesting information pertaining to the Callaway line. Here are Jemimia's children as listed by the book they had. I believe it is the one written by Lillian Hays Oliver.
Sarah m. James Barnes
John Boone Callaway m. Elizabeth Cayton
James Richard m. Nancy Howell (sister to Thomas and Susannah)
Minerva m. Dr. John Jones
Frances m. William Lamme
Susannah Callaway m. Thomas Howell( see above)
Larkin m. Susannah Howell (ditto)
Elizabeth m. Morgan Bryan
Tabitha m. Abraham Darst (my husband's line)
Daniel Boone Callaway m. Anna Griswold.
Except for Tabitha's line, I do not have anything on the next generation. Perhaps if you contact the Boone home in Defiance they would have more information for you. Hope this helps! Peggy. E-mail me if you wish. firstname.lastname@example.org