The 1851 census for my GG Grandparents Robert & Margery (nee Jefferson) Thompson lists the whole family, including 12 children and 2 of the children are called James. The first James (middle name Jefferson) was baptised on 15 November 1829 and the 2nd James birth year is stated as 1844. I have managed to find baptism records for 10 of the children, all baptised at St Hilda's church in South Shields except for the 2nd James and one other brother. I can understand a child being given the same Christian name if the first named one had passed away (although I find this rather morbid). Can it be that the family have taken in the 2 children I can't find baptism records for from another member of the family for whatever reason.