Joshua's baptism is recorded in 1759 in the same place as John's baptism in 1757, so a birth in 1751 or 1757 for Joshua seems unlikely. On p. 70, John is said to d. 1815, aged 58, which calculates to a birth in 1757, but the basis for this report of his death is not found, so that age at death could be a calculation by Briggs. All that is known by found evidence is that John was baptized in 1757.
