It would appear that vital dates for these parents and one or both of his daughters are estimated incorrectly. Please see this record: {{FindAGrave|120698979}}. Mary Hardy's line of descendants with Nicholas Baggett II (ca. 1683-1755) are in a duplicate record here, but with dates concordant with the FindAGrave data and subsequent generations. Note that only two of Mary and Nicholas' children are listed on the FindAGrave site. For this family, sourcing is spotty and imprecise.
Here's another migration record for Nicholas Baggett that indexes to his spouse Mary Hardy on Ancestry: {{Ancestry Record|7486|4028035}}
In efforts to validate the correctness, I decided to look at Mary Hardy, but the relationships get dicey with James Baggett Sr (ca. 1720-1771) - FamilySearch ascribes Abraham Baggett as his father (without sources), but matching on Ancestry places him as a son of Nicholas Baggett II and Mary Hardy. He has a couple of links on his profile for some Ancestry.com matched records that are only able to be confirmed with subscriber access.
Given the time period in colonial America, perhaps that explains lack of sources? OTOH, Baggott links back all the way to the Bagots of Blithfield Hall, so it would seem that these are forgotten descendants?