Susannah Smith Penny (Bagshaw), SV/PROG - Birth date and birthplace of Susannah Smith Bagshaw

This is from the 1820 Settler web site.

Susannah Bagshaw
Born May 1789 [6]
Gender Female
Baptism 30 May 1789 Duffield, Derbyshire, England Find all individuals with events at this location [1, 2]
1820 Settler 15 Feb 1820 Gravesend, Kent, England

Sephton's party on the Aurora
Name Susannah Bagshaw 1820

Died 13 Jan 1870 Mount Pleasant Farm, Salem, Eastern Cape, South Africa
Buried 15 Jan 1870 Salem, Eastern Cape, South Africa
Description: aged 74y, 8m, 26days

I leave it to the more informed to determine the correct birth date and birth place.
If the baptism date from 1820 Settler site is correct then the Geni birthdate is impossible

John,
I guess that I am saying that I question the data from the 1820 Settler website. I see no definite link between the individual from Derbyshire whose birth date is listed and the actual Susannah Smith Bagshaw who was an 1820 Settler.
Rodney