Looking for Le Gros - Good Jersey Name

Andrew from Canada is a descendant from Joseph deMouilpied and looking for more family information. Andrew comes by way of Emily de Mouilpied b.1849, Joseph's oldest child. Emily married John Le Gresley, 1867, another close Guernsey family. They had a daughter Edith Emily Le Gresley b. Oct. 4, 1872.

Edith went on to marry John James Le Gros, apparently an old Jersey name. The Le Gros name still remains in St. Peter Point, Gaspe, Canada, as the Le Gros House seen on the left side of this blog. They had 6 children: John Arthur b. 1897; Gladys Muriel b. 1903; Doris Emily b. 1905; Sydney James b. 1907; Winnifred b. 1909 and Harold b.1912. This Le Gros name is what Andrew needs help with. (Andrew comes by way of Sydney)

John James Le Gros had a father who was also a John James Le Gros who was born abt. 1840 in St. Mary, Jersey (the other Channel Island) His father was Thomas LeGros, b. 1811 also in St. Mary's, Jersey. And this is where Andrew needs help, he just can't seem to go back before Thomas.

Does anyone have information about the Le Gros family from Jersey?
Does any one know any one in Jersey who can help?

I know Guernsey has a fantastic library with Family Names on file filled with genealogy information. Does anyone know if Jersey's Library does the same?

If you are a descendant from Edith Emily Le Gros, Andrew has a great lineage and chart created. He also has documents about marriages, burials etc. And Andrew is enthusiastic. His email is:
aoreilly@shaw.ca