What I have on Celestine is as follows:
I don't have a date of birth for her, but she was one of eight children born to Joseph Gamache who was born 2-4-1796, died 2-28-1872 and Marguerite Boucher. Her siblings were Marguerite Gamache born 12-27-1819, Joseph Gamache II born 10-17-1821, John Baptiste Gamache III born 9-1-1822, Julian Gamache born 1824, Sophia Gamache born 6-29-1831, Francois Gamache born 12-5-1833 and Elizabeth for which there is also no date of birth. Her paternal grandparents were John Baptiste I born 4-29-1768 and Catherine Marguerite Constant born 1773, died 5-21-1833. Their date of marriage was 11-12-1787. Her paternal great grandparents were Jean Baptiste Gamache born 9-21-1734, died 4-17-1805 and Marguerite Charlotte D'Amours DeLeuviere born 1746, died 8-23-1781. They were married in St. Louis, MO on 5-3-1767. Her paternal great-great grandparents were Jean Baptiste Gamache born in Quebec, Canada on 5-7-1704, died 11-15-1748 and Elisabeth Bazin born in Quebec, Canada in 1710. They were married in Cap St-Ignace, Canada on 11-15-1730. Her paternal great-great-great grandparents were Louis Gamache I born in Quebec, Canada on 4-16-1678, died in Quebec, Canada on 2-11-1744 and Angelique Miville Deschesne born in Quebec, Canada in 1683, died in Quebec, Canada on 1-8-1755. They were married in Quebec, Canada on 4-26-1702. Her paternal great-great-great-great grandparents were Nicolas Gamache II Lord of L'Islet, born at Saint Illes-la Ville in diocese de Chartres Ille DeFrance on 4-17-1639, died at Cap St-Ignace, Quebec, Canada on 10-30-1699 and Elisabeth Ursule Cloutier born in Canada on 7-29-1660, died at Cap St-Ignace, Quebec, Canada on 10-24-1699. They were married at Chateau Richer, Quebec, Canada on 11-9-1676. Her paternal great-great-great-great-great grandparents were Nicolas Rehault DuPoisson Marquis de Gamache born in Picardy, France in 1596, died Ille DeFrance in 1676 and Jacqueline Cadot de Chartres born in Picardy, France in 1611, died Ille DeFrance in 1676. There is no future information on Celestine, but I have more information about her siblings and aunts and uncles if you need it, but as lengthy as it is, you may want a copy of the book when I finish updating it. The only thing you pay for is the supplies and shipping & handling (packaging and postage). Let me know how you would like this information. If you want me to email the information to you, it may take me some time to gather it together. Hope this helps you out.