YOWSA! That's the family!
Congratulations. Big smile.
Found this website earlier and so glad it belongs - because this is a really cool family history:http://flyawayjoni.tripod.com/id1.html
Caption for the photo (Cyprien senior and Julia are John's parents, from what you found): "The adults, left to right. Mary Grise Perizzo Senesac, Cyprien Pierre Senesac, JULIA GIBOLEAU SENESAC, and CYPRIEN PETER SENESAC. If anyone knows who those two little darlins' with them are, please let me know."
tester, maybe you can grab a better quality jpg?