Need SWLR marriage record to identify which of 2 Pierre Trahan married Marie Marcelite Sellers

Question

There are two Pierre Trahans born 3 years apart in St Martin Parish, Louisiana. One of them married Marie Marcelite Sellers. Which one?

"Louisiana Births and Christenings, 1811-1830, 1854-1934", database, <i>FamilySearch</i> (https://www.familysearch.org/ark:/61903/1:1:HS5P-462M : 14 January 2020), Pierre Trahan, 1789.

"Louisiana Births and Christenings, 1811-1830, 1854-1934", database, <i>FamilySearch</i> (https://www.familysearch.org/ark:/61903/1:1:HS5G-M93Z : 14 January 2020), Pierre Trahan, 1786.

Comments

It's the 14 Sep 1789 one.  After Pierre Trahan' died in 1833, his brother Firmin had a temporary marriage to Marcelite.

* "Louisiana Marriages, 1816-1906", database, FamilySearch (https://familysearch.org/ark:/61903/1:1:F4ZC-WZB : 14 January 2020), Firmin Trahan, 1853.

---

I've changed Marie's husband to the likely Pierre Trahan profile. However, if anyone has a marriage record of Pierre and/or Firmin with his parents indicated (SWLR), please respond as an answer.