The information I provided you with came from Father Donald Hebert's Southwest Louisiana Records, Volumes I (pre-1810) and II (1810-1830).Father Hebert catalogued all of the documents that he could find at churches and courthouses in Southwest Louisiana.There are currently 42 volumes available, covering all years through 1910, I think.I only have access to Volumes I and II (before 1830) right now.You can order the books or a cd of the books, or see if your local library has a copy.
The format of the entries (which I copied almost exactly) is: Person Name (father and mother names)born/married/dieddate (Church or Courthouse citation)
The information in parantheses after the dates tells where you can find the original document that Father Hebert found.Many of the early documents for your family came from the SM Church (St. Martin of Tours), and the later documents came from the Lafayette Church and the Lafayette Courthouse.If you send a letter to the churches with the volume and page numbers provided, they will likely send you a copy of the original records for a small fee.
I've found Father Hebert's recordkeeping to be quite accurate.I tend to trust the information in these books more than other things online, since we can order these records and look at them ourselves.From the information I saw last night, I think there were two Joseph Dugas, one who married Celeste Dugas (and according to Father Hebert is the father of Marcellin Dugas), and one who married a Breau.
If you have any other information about your Joseph or Marcellin (that would be before 1830), let me know and I will check the books again.This family is not in my direct line (I am descended from Joseph's Grandfather in another way), so I don't have any information other than what is in Fr Hebert's books.