From the notes in the bio:
Note: Adopting orphan and disconnecting Hester as the daughter of Samuel Allen-1783 and his wife Mary Unknown-179058. Hester is commonly included with this family, however I'm not finding any documented sources that include her with the other children of Samuel & Mary Allen. Powell-5629 19:49, 12 September 2015 (EDT)
Further research has shown nothing but unsourced family trees that could be mistake, conjecture, copied from each other.
I wonder if she was confused with this Hester Allen, a daughter of a different Samuel Allen? Years are off a bit, but possible:
From B Schwartz:
Hester's baptism in Chew Magna 26 Mar 1670. "Hester ye daughter of Samuell Allen"
Definitely goes directly to the record for me but may not always.
This is the 'official' citation Somerset : Chew Magna : St Andrew : Parish Register : "Parish Register" database, FreeREG (https://www.freereg.org.uk/search_records/58185463e93790eca3e5243c : viewed 1 Nov 2022) baptism Hester Allen 26 Mar 1670
The ancestry one (better in my opinion because an image)
Somerset Heritage Service; Taunton, Somerset, England; Somerset Parish Records, 1538-1914; Reference Number: D\P\che.m/2/1/1 Chew Magna Combined Register
Hester ye dafter of Samuel Allen ye 26 march