Valsin is listed as a slave owner in 1860 slave schedules - he owned one slave, a female age 15, black
Int he census records from ancestry Azema was born around 1818 and at familysearch.org there is a birth for a Marie Azema Guidry Jan. 20, 1819 which is a possible
MARIE AZEMA GUIDRY born Jan. 20, 1819, St. Martinville, St. Martin, Louisiana, father Joseph Guidry, mother Melisere Melancon
I guess the only way to know if this is the right Azema would be to get her marriage record. You could always contact the marriage office and ask for the full copy of the record and see if it includes the parents names.