I note that the only tree on Ancestry that mentions Susannah 1759, is a private tree, you could contact the owner for more details.
Some of the other trees refer to the burials of the John & Elizabeth you mention as being at Rumburgh, Suffolk. These burials can be seen on
https://www.freereg.org.ukIf you are not certain that they are the parents of Susannah you could consider below.
Susanna Pinkney
Baptism Date: 22 Oct 1751
Baptism Place: Wissett, Suffolk, England
Father: Wm. Pinkney
Mother: Lydia Pinkney
Wissett, Suffolk is 4 miles South of Ilketshall St Andrew, Suffolk.
Colin