https://www.findagrave.com/memorial/100999604
BIRTH 1802 Kentucky, USA DEATH 1843 (aged 40–41) Kentucky, USA BURIAL Western Cemetery Louisville, Jefferson County, Kentucky, USA
According to the memorial, Mary Jane was "Consort of John L. Reed". She is listed as having a daughter, Harriet Reed, who is also buried in Kentucky. Mary Jane has been confused as having a daughter by the same name in Illinois, but they are no relation. There is no evidence that Mary Jane was married to Josiah Cunningham (or Clark) Reed of Illinois.
Have you taken a DNA test? If so, login to add it. If not, see our friends at Ancestry DNA.