I have been doing genealogy for more than 10 yrs. I simply took the good information you provided and started with the 1860 census in Upshur county and found Frances E Oliver with her family.
In some cases I do not put in a first name which will give more information than needed but a good way to eliminate. Sometimes we can not see the forest for the trees so to speak. I also discount middle initials when the transcriptions come up as they sometimes are misread by the staff at Ancestry who transcribed the census.
I also leave out place of birth at times as not all of the census transcribed shows a place of birth.
Example: John Reeves located in Columbia Co GA in 1850 lists no place of birth at all.
Sometimes people simply were not counted for whatever reason.
1870 Clarksville, Red River
Johan/John Reeves abt 1813 SC
Francis Reeves abt 1840 Tennessee - 2nd wife
Lunnie ? Reeves abt 1857 Texas
Richard Reeves abt 1860 Texas
Lucy Reeves abt 1869 Texas
..."Lunnie and Richard" possibly not Reeves...may be children of Frances from previous marriage. They are not listed w/John Reeves in 1860 census.
1870, Robbinsville, RR, TX
Salina Reeves abt 1836/38 Alabama $400 personal wealth...Mr. Reeves left a will ?
Sallie Reeves abt 1852 Alabama
James Reeves abt 1856 Alabama
William Reeves abt 1862 Alabama
Samuel Geter abt 1850 Alabama...brother to Salina E
Salina Reeves second wife ? to unknown Reeves or age is incorrect as she would have been abt 16 when Sallie was born...not uncommon though.
1860, Clarksville, RR
John Reeves 1813 SC
Margaret Reeves 1810 GA
Anderson Reeves 1838 GA
Martha J Reeves 1845 GA
Simply no John Reeves listed in census records with a W. Reeves as father.
The above William Reeves and Selena E Reives show up as Wm B Reives in Gonzales Co TX in 1880 with Ben S "Jiter". Selena and Ben S Jiter/Jeter are sister and brother. It is noted that father of Wm B Reives was from GA.
B S [Benjamin Samuel] Jeter born 1848/1849 is in Coosa Co AL in 1860 census with his family including female S E Jeter born abt 1850. So how does Sallie Reeves born abt 1852 and James Reeves born abt 1856 relate to Salena E Jeter Reeves ? I find one Reaves family in the 1860 Coosa AL census; George W Reeves b. abt 1835 GA, Rachel 1837 and Lilly H 1859.
Somewhere in Alabama in 1860 there is a Sallie/Sarah and James Reeves and possibly John B Reeves and their father who married Salena Jeter around 1861-1862 and they had William B Reeves moved to Texas before 1870 and Mr. Reeves died before 1870 ?
My Ancestry subscription includes Alabama marriages which includes Coosa Co AL. No record for Salena Jeter to a Reeves is found which leads me to think that not all marriages are included.
Sorry that I can not come up with something concrete other than being able to check for a possible will or probate in RR county for unknown Reeves before 1870 as Salena had money from somewhere in 1870.