His grave site is listed with Find a Grave. Has noted wife Caroline d. 1887 at age 17 was his second wife. The 1900 census for Job and Laura Parker living in Township 27, Cherokee Nation, Indian Territory has they were married 14 years. Another note on Find A Grave listing states he was a Second Degree Mason. Meaning he was a member of the Fraternal Order of Freemasons. His membership information may still be available that should name his father. Contact the Oklahoma Grand Lodge (They should have a website) to see if it is possible to access information.