Part 1: 91Elizabeth's parents and 183Mary's father

The following diagram summarizes the evidence I've found to identify the parents of 91Elizabeth Sutton and the father of 183Mary Chambers, and how I've interpreted that evidence. The diagram is followed by a citation and description for each source noted in the diagram, then lastly some additional commentary and closing thoughts.

As you can see, the 1850 census (source C above) is a critical piece of evidence: Phoebe Chambers' presence helps to affirm 182Mary's identity; 91Elizabeth's siblings (Henry and William) as shown here help us identify 91Elizabeth and her family with more certainty in later records; and it strongly implies who Henry's and William's (and thus also 91Elizabeth's) parents are. Ultimately, all of the other sources simply reinforce the conclusions that one might draw from this census.

Although 366William Chambers' will makes no mention of 182Mary, the omission doesn't necessarily preclude the possibility that she is his daughter. Indeed, there is contemporary evidence that suggests (albeit loosely) that he had daughters not named in the will: Below is an excerpt from a description of a court proceeding initiated by 366William's son Henry, who was challenging the will in court. Notice the phrase "legitimate (son) child then [i.e., in 1837] in life." (The issue of the children's legitimacy is addressed in part 2 of this page; see below.)

This court minutes record insinuates that 366William had "legitimate" daughters not named in the will. Full page. Transcription.
SOURCE: Wilkinson County, Georgia. Probate court minutes book A, page 48. FamilySearch, <https://www.familysearch.org/ark:/61903/3:1:3Q9M-CS73-99QN-C?i=50&cat=576620>.

Short of a record that explicitly and directly names 91Elizabeth's parents, I feel confident in concluding that they are 182Rodie Johnson Sutton and 183Mary Chambers, based on the robust evidence presented above. Similarly, I feel confident in concluding that 182Mary's father is 366William Chambers.

Part 2: 183Mary's mother

366William Chambers' wife (and 183Mary's mother) might be a woman named Martha Robertson. Consider the following marriage record, dated 19 September 1803 in Warren County.1

An 1803 marriage is consistent with 183Mary's birth circa 1804.2 However, as you can see, the groom's name seems to be William Chamberly, not Chambers, so this could be a different couple altogether.

Another confounder for the above marriage record is 366William Chambers' registration for the 1805 Georgia land lottery: He registered for two draws,3 which (according to the lottery's rules) should mean that he had a wife and child by the last day of the registration period, i.e., by 1 March 1804—a biological impossibility if he had married just a few months earlier on 19 September (unless 183Mary was conceived before the wedding). Some lottery participants registered under false pretenses, however.

I haven't found Martha in earlier records, but notice that early Warren County tax digests include three Rober(t)son men around the time of the marriage record shown above:

(1)	Nathaniel Robertson: 1805: page 70, Captain David Neal's district. FamilySearch, <https://www.familysearch.org/ark:/61903/3:1:3Q9M-CS4K-2QQC-M?cc=4130006&personaUrl=%2Fark%3A%2F61903%2F1%3A1%3A68B9-T5ZZ>.
(2)	Norwell/Norvell Robertson 1801: page 49, Captain Barrett Brewer's district. FamilySearch, <https://www.familysearch.org/ark:/61903/3:1:3Q9M-CS4K-2QQ4-3?cc=4130006&personaUrl=%2Fark%3A%2F61903%2F1%3A1%3A68YV-4TPG>. 1805: n.p., Captain Devereaux's district. FamilySearch, <https://www.familysearch.org/ark:/61903/3:1:3Q9M-CS4K-2Q3F-G?cc=4130006&personaUrl=%2Fark%3A%2F61903%2F1%3A1%3A68YV-DBNX>. Notice that 366William, Henry, and Joel Chambers (discussed above in part 1) are all listed just a few lines further down the page.
(3)	W. A. Roberson 1805: n.p., militia district 159. FamilySearch, <https://www.familysearch.org/ark:/61903/3:1:3Q9M-C3H3-PHNL?cc=4130006&personaUrl=%2Fark%3A%2F61903%2F1%3A1%3A6CT8-LFGH>.

Confusingly, and regardless of whatever prior marital history he may have had, 366William seems to have engaged in a longterm pseudo-marriage with a woman named Rebecca Stuckey. His will leaves the bulk of his estate to her yet doesn't describe her as "wife." The will introduces several other heirs as "___ Chambers, alias ____ Stuckey." Two heirs (Joel and Henry) are explicitly introduced as "son," but the others are not. (You can read a transcription here.) 4 Rebecca apparently had been estranged from her husband, judging by this newspaper notice printed on 29 September 1818:5

Since 183Mary was born circa 1804,2 and since Rebecca was estranged from her husband in 1818,5 Rebecca is almost certainly not 183Mary's mother.

Sources Cited for Part 2:

1: Warren County, Georgia. Marriages book A (1794-1814), page 13, entry 335. FamilySearch, <https://www.familysearch.org/ark:/61903/3:1:33S7-9BZ3-93S?i=40&cc=1927197>, accessed 21 April 2023.

2: 1850 U.S. Federal Census (Population Schedule). Warren County, Georgia. Page 12, dwelling 98, family 98, Mary Sutton household. NARA microfilm publication M432, roll 86. FamilySearch, <https://www.familysearch.org/ark:/61903/3:1:S3HT-XCMK-F2?i=11&cc=1401638&personaUrl=%2Fark%3A%2F61903%2F1%3A1%3AMZYD-XXY>., accessed 11 February 2020.

3: Paul K. Graham, 1805 Georgia Land Lottery Fortunate Drawers and Grantees (The Genealogy Company, Decatur, Georgia, 2010), page 193, entry #253 for William Chambers of Warren County. You can see the plat map here.

4: Wilkinson County, Georgia. Probate records 3 (1827-1838), pages 341-342. FamilySearch, <https://www.familysearch.org/ark:/61903/3:1:3QSQ-G9QM-2DSL?i=619&cat=576587>, accessed 18 April 2023.

5: The Reflector (Milledgeville, Georgia), 29 September 1818, page 3, column 3, about ⅓ down the page