Marie Thérèse Coincoin is both a historical figure whose life illuminates the complexities of colonial Louisiana and an ancestor in my maternal family. I trace my descent through her son Dominique Metoyer and later generations of the Rachal family. The Creole Heritage Center at Northwestern State University provides the essential pedigree reference for this investigation; my Ancestry family tree supplies a working framework for comparison and extension.

The family relationship

The significant genealogical connection is Marie Thérèse Coincoin → Dominique Metoyer → Marie Suzanne Metoyer → Louis Casimere Rachal. My working tree continues through later Rachal, Waters, and Thompson generations to my own family. This public account stops short of displaying identifiable details of living relatives.

The parent-child sequence is present in the October 2026 Ancestry GEDCOM. The Creole Heritage Center pedigree is the principal specialist reference for the Coincoin–Metoyer branch; individual documentary sources and the pedigree’s precise coverage will be cited as the research inventory develops. A linked tree is not, on its own, independent verification of every relationship.

Two sisters, two paths to my family

The discovery came in two stages, only months apart. Earlier in 2026, while following my great-grandmother’s Rachal line and reading Elizabeth Shown Mills’s research, I traced my ancestry to Marie Louise, known as Mariotte. She was Marie Thérèse Coincoin’s sister—not her daughter, as some accounts have suggested. At that point, I understood my connection to Coincoin as a family relationship through her sister, rather than a direct line of descent. In July, I brought the research to Northwestern State University’s Creole Heritage Center in Natchitoches. Kent Peacock and genealogist Kim Anty reviewed the tree against their genealogical records, and Kim sketched out something I hadn’t recognized: a second line, running directly through Coincoin’s son Dominique Metoyer. What I thought was one ancestral route turned out to be two.

Following both branches brings me to Louis Casimere Rachal and Marie Zeline Lecour. Their daughter Onesyine Rachal is where the two paths meet. From her, the line continues through the Rachal, Waters, and Thompson families to me. In genealogical terms, this is pedigree collapse—the same earlier family appears along more than one ancestral path. To me, it is also a reminder that a family tree can conceal the density of relationships within a place.

The two lines meet at Onesyine Rachal. Her father, Louis Casimere Rachal, descends from Coincoin; her mother, Marie Zeline Lecour, descends from Mariotte. From that point onward, both paths lead through the same descendants to me.

What interests me most is not simply that I can trace two routes to a pair of sisters. It is what those overlapping lines might tell us about the social world of Cane River: kinship, marriage, households, and the relationships that endured across generations. The Creole Heritage Center’s July 2026 review was the turning point in understanding these connections; its pedigree and my working GEDCOM give me a foundation for that inquiry. They do not replace checking the historical evidence behind individual links or the stories of the people themselves.

A life in the Cane River record

Coincoin’s story intersects with enslavement, emancipation, the creation and division of households, property ownership, and the emergence of connected communities along Cane River. These histories resist simple celebration. Freedom and opportunity existed within a colonial society shaped by slavery; later accounts have sometimes blurred evidence and legend.

As a descendant and a folklorist, I want to understand both what the sources establish and how family and public memory have interpreted her life. The purpose of this page is not to replace the Creole Heritage Center’s genealogical expertise or the scholarship of specialists. It is to situate those findings within a living family and community history.

Names, sources, and interpretation

My Ancestry record currently places “Thérèse Kokwē Eʋeawó” first and also records “Marie Thérèse Coincoin” and other variations. That display order is a feature of the working tree, not a decision about historical authenticity. This page uses Marie Thérèse Coincoin as its familiar public heading while treating all variants as source-specific claims to be examined rather than uncritically repeated.

Elizabeth Shown Mills’s scholarship is especially important to this investigation. Her research asks how the historical record can be distinguished from later narratives about Coincoin and Cane River. The Creole Heritage Center pedigree also references her work. I own several of her books and will develop specific citations as each source is reviewed rather than inserting unverified page numbers or quotations.

Research status

• Established within the working records: a linked descendant pathway through Dominique Metoyer and the Rachal family in the October 2026 GEDCOM.
• Specialist pedigree reference: Creole Heritage Center chart, retained in its original form above.
• Under source review: the citation and coverage of each pedigree link; historical attestations of alternate names; potentially conflicting dates and biographical claims.
• Future interpretation: the descendants’ relationships to Cane River landscapes, community histories, and other relevant family branches.

What remains

Complete a source-by-source register for the Dominique branch, document the pedigree’s exact provenance and scholarly references, compare variant names against the original records, and distinguish historical claims from interpretive traditions. Family photographs, correspondence, oral histories, and local records may add dimensions not visible in a formal pedigree.

Research sources and related work

• Creole Heritage Center, Northwestern State University — institutional genealogical and heritage research.
• Elizabeth Shown Mills, Historic Pathways — historical and genealogical scholarship; bibliographic references to be expanded as texts are reviewed.
• Cane River National Heritage Area: Marie Thérèse Coincoin — interpretive account, to be read critically alongside the historical literature.
• Guin Family Tree, Ancestry GEDCOM export, October 14, 2026 — private research dataset, not a public proof source.

Add to the Record

Do you have family photographs, documents, stories, corrections, or research leads concerning Coincoin, Mariotte, Metoyer, Rachal, or related Cane River families? I would welcome the opportunity to learn from what you know. You don’t need a complete family history—a name, a source, or a remembered story can be a place to begin.

Contributions go through the site’s shared Add to the Record process, where I review submissions for context, provenance, and permission before considering public use. Please don’t send private DNA results or information about living people without their consent.

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Know something that adds context, documentation, correction, or firsthand knowledge to this record? Keep this page open and copy its URL into the contribution form. Please protect living relatives’ privacy.

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