Thank you for your reply. I have already studied the available records (in French) for the Canton of Neuchatel,(I visited the State Archives at the Chateau de Neuchatel) for my Great great grandmother, Pauline Borel and I found her brother in the 1869 census and the birth and marriage of her Father in the relevant books. (Both were named Francois Edouard).
However, although I know from her marriage certificate where and approx when she was born, I have not found the birth record. I wanted to know if there was another way to trace her?