Yeah you are right
It is hard to know for sure.... best to get birth certificate
I have ancestry records saved... am I able to attach or are there copyright laws that prohibit this.
In the long form for 1851 (people in the house- handwritten) it says cambridge shire for Thomas and East Heaton for Mary...
on this there are only the three children John, Joab and Mary.. guessing Mary and Betsy could have been working / out the house / married... by then.
Thanks
Sara