Birth Date is Questionable

I'm not entirely sure I believe that Elizabeth was born in 1745. If so, she would have been 110 when she died in 1856. Reaching such a great age is rare even today. I can't imagine she would have lived that long in the 1800s. Also, it would have meant that she gave birth to Jean Baptiste when she was in her 40s. More research is needed to verify her dates.