Are you descended from Henry and Dorothea Hall Fosbery? She is listed as dau of George Hall 1851 Census. Year: 1851; Census Place: Otonabee, Peterborough County, Canada West (Ontario); Schedule: A; Roll: C_11748; Page: 81; Line: 21
Other children include Charlotte and John (same Census). There is another sister Georgiana born much later than other siblings, 1858, who died 1913 from Cirhosis of Liver.
Hope you will consider adding these children with their citations to WikiTree.