No, we are not talking about the same Heloise Meuillon.

For years now, I have argued the point with certain genealogist that Eloisa (Eloya) Louise Meuillon, born Abt. 1785 was not the daughter of Jean Chevis. With your problem, you have confirmed that I was right, which I already new.

There are two (2) Heloise Meuillon's.

One (1) Eloisa (Eloya) Louise Meuillon, born Abt. 1785 who was the daughter of Jean Baptiste Meuillon and Angelica (Slave) Villeré. She appears in the 1850 census as Heloise Guillory, living with her husband, Joseph Guillory.

1850 United States Federal Census

Name: Joseph Guilhory
Age: 80
Estimated birth year: abt 1770
Birth Place: Louisiana
Gender: Male
Home in 1850
(City,County,State): St Landry, Louisiana
Family and neighbors: *Living next to his sons Onezime Guillory and Elphège (Elfain) Guillory
Household Members: Name Age
Joseph Guilhory 80
Heloise Guilhory 60

Two (2) Heloise Meuillon who appears in the 1850 census as Heloise Mullon, born Abt. 1800

1850 United States Federal Census

Name: Heloise Mullon
[Heloise Meillon]
Age: 50
Estimated Birth Year: abt 1800
Birth Place: Louisiana
Race: Mulatto
Home in 1850(City,County,State): St Landry, Louisiana
Family Number: 2767
Household Members: Name Age
Heloise Mullon 50