I checked Father Hebert's Southwest Louisiana records, and here are the children I found for Jean Baptiste and Marie Aurelia.
DUHON, Jean Baptiste (Jean Baptiste & Aurelie DUHON) b. March 1878 (Creole Ch.: v. 1, p. 172)
DUHON, Joseph (John & Aurelia DUHON) m. 8 Jan. 1894 Emily RICHARD (Creole Ch.: v. 1, p. 42)
DUHON, John B. (John & Aurelia DUHON) m. 21 Dec. 1896 Eva RICHARD (Creole Ch.: v. 1, p.61) (NB:Emily and Eva are sisters, the daughters of Valerian Richard & Belsiare PRIMEAU)
Creole Church = Sacred Heart Church, P.O. Box 7, Creole, LA 70632.The church was established in 1889, but there are a few records before that.This may explain why I couldn't find the birth records for all of the children.
I could not find any record of a succession for a Duhon in Cameron Parish in 1875.This looks more likely for your Aurelia: DUHON, Mary Aureliam. John DUHONSucc. dated 30 Dec. 1879 (Cameron Ct. Hse.: Succ. #33)
The records I have only go to 1900, which probably explains why I couldn't findt he other children that you listed.