I'll do my best! But, I logon daily for extended hours researching in every Texas County. As a result, I've accumulated much data on a variety of surnames since 5 Jan 2015. Primarily, I use: ancestry.com, familysearch.org, and find a grave daily. Sporadically I also rely of Fold3 and genealogybank which, along with ancestry.com, are paid subscriptions. The earlier cited 1910 census of Marion County was from ancestry.com. Ancestry owns familysearch.org and sometimes the same info is viewable on both sites. From ancestry.com: 1900 Marion-Precinct 2-District 89-Image 4 has A. J. Davis age 63 as head of household. Also in the home were kids: Robert age 24, Jessie age 20, and twins Eula and Lula. You'll find Eula's death certificate online https://familysearch.org/
If this site is "new" to you, logon and create a "free" account to access/print vital documents. Lula's death certificate witnessed by Mrs. A. T. Bogue. Are you acquainted? I've assisted the author of the original thread previously. Andrew William Davis was son of William Riley, thus is misplaced. Andrew J. Davis (4 Feb 1837 - 18 Jun 1918) and Delilah (1845 - 18 May 1898) were the parents. Guess I'll have to go in search of their pre-1900 history?