Peter DeFord's parents?

DeFord line. I've been searching for GGGpa Peter DeFord in French Canadian haystacks and found one near Montreal with many of the right characteristics. The Montreal suburbs of Repentigny and L'Assomption were knee deep in Bougret dit Dufords in 1838 when Peter was born. The BdDs slowly dropped Bougret and retained Duford--which sometimes became Deford when they emigrated to the U.S.

Joseph Bougret dit Duford married Marguerite Nouvion in 1814 in Repentigny. They had a number of kids, including two sets of twins before Joseph died in 1849 (our Peter would have been 11 at the time). BdD marriages, baptisms and burials were faithfully recorded in the parish records (handwritten in French) up through about 1833, after which the family disappears. The 1851 census proves they still lived there, but they dropped out of the local parish rolls--consistent with family stories of a falling out with the local church. If Peter (or Pierre--there was a BdD cousin of similar age named Pierre) was born in Repentigny in 1838, he wasn't baptized in the local church. And there's no Peter in the family in the 1851 census--consistent with the story of him running away at age 12. Unfortunately, the census and parish records are the only sources of any kind from that time/place. We may never get any closer than this... Still, I'll keep searching in haystacks.