Well I hope I can help you, however my Pierre went to Guernsey not Jersey. He was convicted there of forgery of coins and sentenced to 7 years transported to Australia in 1735. I have traced his family with the services of a French Geneologist and have a copy of his baptism in Sauxemesnil in Normandy. That was really exciting for me I can tell you. You can email me on email@example.com
and I can sort something out for you. I must say the Poidevins look similar.
Please contact me
Cheers Ina Peacock