By visiting the Find A Grave website pages for Mom, Dad, or any of their sibling's pages, you can go back through the family and trace the family line. Some of these pages will have pictures or obituaries that are pretty interesting. I have made all the connections of family members I could find who have grave sites listed on Find A Grave. If you know of someone not listed, send me their Find A Grave page address and I will try to add them.
Regarding the Bragg family of central Illinois. Many of these families descend from Hugh Lewis and Francis Bragg, including our Great-Great-Grandfather William Bragg. However, since the graves of Hugh and Francis are unknown and not listed on Find A Grave, that part of the family line stops there. This is also the case for all the known children of Hugh and Francis Bragg. Below is the link to the pages of each of their children:
Children of Hugh Lewis and Francis Sutherland Bragg
Martha Ann Bragg Yoakum
Birth 5 May 1817
Death 7 Mar 1850 (aged 32)
Burial - Shoults Cemetery, Ross County, Ohio, USA
https://www.findagrave.com/
******************************
James Bragg
Birth 10 Jan 1820, Pickaway County, Ohio, USA
Death 30 Sep 1912 (aged 92), Moultrie County, Illinois, USA
Burial - Unknown
https://www.findagrave.com/ memorial/155052603
*************************************
Birth 10 Jan 1820, Pickaway County, Ohio, USA
Death 30 Sep 1912 (aged 92), Moultrie County, Illinois, USA
Burial - Unknown
https://www.findagrave.com/
*************************************
John Bragg
Birth 1822Death 1864 (aged 41–42)
Burial - Unknown
https://www.findagrave.com/
*************************************
Anna Mariah Bragg Hull
Birth 21 Jul 1831, Ross County, Ohio, USA
Death 21 May 1869 (aged 37), Moultrie County, Illinois, USA
Burial - Pea Cemetery, Sullivan, Moultrie County, Illinois, USA
https://www.findagrave.com/
*************************************
William Bragg
Birth 14 Jun 1834, Ross County, Ohio, USA
Death 4 Dec 1900 (aged 66), Moultrie County, Illinois, USA
Burial - Pea Cemetery, Sullivan, Moultrie County, Illinois, USA
https://www.findagrave.com/