Suggest you send for the marriage record from Saint Mary Parish. It will give you more information than the online record has:

"It is important that you use the information found in this database to locate your ancestor in the original records that this index references. Usually more information is available in the records themselves than is found in an index. For example, marriage records sometimes provide the birth dates and places of the bride and groom, their parents' names, their addresses, and witnesses' names, in addition to the information found in this index. To obtain a copy of the original record contact the courthouse located in the parish where the marriage took place. Some of these records may also be available on microfilm at the Family History Library. To check and see if the record is located there, perform a place or locality search in the Family History Library Catalog for your parish of interest. Any marriage records that are microfilmed and available there will be under the Vital Records category."

ancestry.com Louisiaina marriages database

Denise