Elizabeth was baptized on the same day as her sister Jane; the possibility exists that the two were twins, although one may have been born earlier in the period following their parents marriage in 1813, but not christened at that time.
Elizabeth's first husband William Henry Childs used his birth surname (his unwed mother's name) at the time of his first marriage, but used his stepfather's surname at the time of the 1834 marriage to Elizabeth: thus he appears in the marriage record as William Childs Pavitt. He and his children by Elizabeth also appear under the Pavitt surname in the 1851 census -- though she is absent (but can be found in her parents' household, using the Pavitt surname) -- but not the 1841 census... and all their children are christened as Childses, not Pavitts. By the 1861 census, Elizabeth is shown as a widow, and the family is again shown under the Childs name.
Elizabeth's 1862 second marriage appears to have been a successful one: she and Henry Giles were married some 34 years. In 1866, perhaps at Henry's instigation (an immigration record suggests, though not conclusively, that he had come to America before, in 1860), the couple pulled up stakes and -- with three of her children by her first marriage -- they emigrated to Massachusetts, where they spent the remainder of their lives, in the small, rural town of Medway, west of Boston. Another son, Edwin Childs, followed a year later with his wife Charlotte and two children, and this branch of the Childs family became firmly established in New England... in all likelihood, thanks to Henry Giles.
Elizabeth and Henry rest together in Medway's Evergreen Cemetery.
[Note: Birth date given is christening date.]
Birth (christening): "England Births and Christenings, 1538-1975," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:N6RT-3Z9 : 30 December 2014, Elizabeth Evart Moors [note: middle name "Evart" is a mistranscription of "Watts"]); citing Somerset, England, index based upon data collected by the Genealogical Society of Utah, Salt Lake City. There are a limited-access images of the two alternative original christening records.
Marriage (1): "England Marriages, 1538–1973 ," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:NXXH-RHM : 10 December 2014), William Childs Pavitt and Elizabeth Moors, 14 Oct 1834; citing East Coker, Somerset, England, reference it 4 72, index based upon data collected by the Genealogical Society of Utah, Salt Lake City
Death: "Massachusetts Deaths, 1841-1915," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:N71Q-NH1 : 10 March 2018), Elizabeth W. Giles, 15 Aug 1898; citing Medway, Massachusetts, v 482 p 551, State Archives, Boston; FHL microfilm 961,525
FindAGrave entry (with photo of gravestone for both Henry and Elizabeth) for "Elizabeth W. Moore Giles": Find A Grave, database and images (https://www.findagrave.com : accessed 15 May 2019), memorial page for Elizabeth W. Moore Giles (1817–15 Aug 1898), Find A Grave Memorial no. 141844175, citing Evergreen Cemetery, West Medway, Norfolk County, Massachusetts, USA ; Maintained by James Bianco (contributor 47745493); https://www.findagrave.com/memorial/141844175/elizabeth-w_-giles
It may be possible to confirm family relationships with Elizabeth by comparing test results with other carriers of her mitochondrial DNA.
However, there are no known mtDNA test-takers in her direct maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Elizabeth: