Jessie M. Knox and Priscilla Knox were married 5 Feb 1883 in Marion Cty. Priscilla's mother, Sarah/Sallie Caulk Cason married LMC Osborn 5 Sep 1889 in Marion Cty. I would like to know where Sallie Osborn's grave is. I do not find this couple on the census so they just fall into the 1881-1899 hole. Sallie and her daughters homestead next door to the Knox's so I am assuming that Dr. Daniel Cason died in MO about 1886. Jessie and Pricsilla move on to Oklahoma by 1893.
Sallie's other daughters:
Luella b. 1867, Iowa
Susan b.1866 m. Franklin Osborn
Margaret b. 1870 Iowa
Adaline b. 1870 Iowa m. Frank Smith
Caroline b. 1871 Iowa m. Benjamin Treadway