Just saw your SIMON query on the Acadian/Cajun list and may be able to help a little. Your black SIMONs of Iberia & St.Mary Parishes may have been related to Tomas [Thomas?] SIMON, b. abt 1849 to a father from VA and a mother from LA. In the 1880 census of St. Mary, he is shown as family #130, with wife Deliska (30y) & children Marie (13y), Thomas (10y), Josephina (7y), Edward (2y), & Benney (2.5y). An elderly widow named Charlotte SIMON (70y, b. in LA) lived next door and had parents from NC & VA. I think it is likely that she was Tomas's mother or aunt.
This may have been the black SIMON family that was dispersed after the "Sugar Massacre" of the late 1880's when I think Thomas Sr. and perhaps Thomas Jr. were killed in or near Freetown.
I am not related to them, but became curious because of the name.
Morris Simon
simon@stillman.edu