NOTE: [Information provided by Eva Guillory]

Charles Firmin was born in 1831 - date unknown
Julia Charrier was born in 1836 - date unknown
They were married on February 21, 1854
They had 5 children - Antoine, Julia, Ammenth, Elphege, and HARMOGEN

Harmogen Firmin (June 22, 1872 - July29, 1916) married Viola Agnes Charrier (January 21, 1872 - October 14, 1956) - wedding date unknown.
They bore 6 children - CHARLES, Mary, Alcade, Adlina, Luke, and Lorena

The Mayeux linage begins with
Edmond Mayeux (December 5, 1865 - May 9, 1938 married to Leona Guillory (May 17, 1876 - June 30, 1936) - wedding date unknown.
They had 10 children - Mitchel,* C. Y.*, Orelian, Urbon, Archange, Willie, Sidney, Cliff, LEAH, and Mamel

Charles Firmin (July 21, 1897 - October 25, 1985) son of Harmogen Firmin and Viola Charrier married
Leah Mayeux (Movember 11, 1914 - March 27, 1986) daughter of Edmond Mayeux and Leona Guillory on November 12, 1939.
They had 10 children - Pauline, Theresa, Eva, Laura, Bertha, Effie, Margaret, Donald, Dean and Paul.

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* It appears that Edmond Mayeux was married to Francis Guillory before he married Leona Guillory; according to Sadie Firmin Rabalais, the two women were sisters and Mitchell and C.Y. were children resulting from this marriage.  Here is a link to the gravestone for Francis Guillory.  Note the misspelling of "Mayeux" on the gravestone.  See an image of the gravestone below.