I obtained this information a number of years ago at the LDS library. They now have a website at www.familysearch.org
. I was looking for records on Victor Hugo's family. The only information I have on Catherine Mansuy is her birthdate is about 1650, Domvallier, Voges, France and her father was Claude Mansuy. I'm sure if you checked the records on the Mansuy, you might find more.