This is a real shot in the dark, but I'm hoping it can lead somewhere, perhaps spark a memory or make someone's research click, so to speak. In a birth index for Orleans Parish, LA, I found a Jean Joseph Chabert born to a Joseph Chabert and Catherine Arnoux on 7-28-1820. Could Joseph possibly be Philippe's father? Could Victoire and Philippe have been cousins? So many possibilities. The spelling of Arnoux is different from Arnaud that's on birth indexes listing the children of Philippe and Victoire, but it remains a possibility. Victoire is sometimes listed as Armand in these indexes, also. I'm looking in all directions but haven't been successful yet. Perhaps others will.