Saint-Domingue (Haiti) and the French Refugees to America, Late 1700s and Early 1800s

Saint-Domingue (Haiti) on left, prior to 1804.

In discovering more information about the family of Edward William Johnston's (1799-1867) first wife, I'm still not entirely sure how it all fits together. Let's begin with their marriage.

"Saturday last [February 7, 1824], by Rev. Mr. Powers, Edward W. Johns[t]on of Virginia to Maria Antoinette Estelle Costar, of this city." (New York Marriage Newspaper Extracts, 1801-1880, Barber Collection). 

And her death. "Died- In Washington City, on Friday, Dec. 15, Mrs. Marie Antoinette Estelle Johnston, wife of Edward William Johnston,"  Richmond Whig and Public Advertiser, Tuesday, December 19, 1848.  ("From the marriage and obituary citations compiled by Bernard J. Henley from Virginia newspapers on microfilm at the Library of Virginia," film 144).

Find-A-Grave record: "Marie Antoinette Estelle Johnston, Death, December 16, 1848. In this city on yesterday morning after a severe and painful illness, Mrs. Marie Antoinette Estelle Johnston, wife of Edward W. Johnston, Esq. The funeral will take place from her late residence at 2 o'clock this day which the friends of the family are invited to attend. --from the Congressional Cemetery Archives. 

Burial: Congressional Cemetery, Washington, District Of Columbia, USA Plot: Range 56 site 61." I believe now that Marie (or Maria) Antoinette's mother was named Joséphine Labarrière, and that her father was Dr. Paul Valentine Costar (perhaps shortened from Costari); Jerome De Cressac Villagrand was her step-father. Source: Joséphine Labarrière, veuve de Costard [Costar], en premières noces, et épouse, en secondes noces, du sieur de Cressac de Villagrand. Plantation Owners of St. Domingue, 1789. http://www.domingino.de/stdomin/colons_l.htm Next document: Costari, Henry Benjamin, born Jan. 3d [1795], of Dr. Paul Valentine and Mary Joséphine Labarrier Costari; baptized [April] 7th; sponsors -- Benjamin Prouveur and Henrietta Fabre, French.  Source: American Catholic Historical Society of Philadelphia. Baptismal Records (1887), p. 13: https://archive.org/stream/recordsofamerica22ameruoft#page/12/mode/2up After Dr. Paul Valentine Costar died sometime in the early 1800s (presumably), Joséphine Labarrière Costar married and resided with Jerome De Cressac Villagrand in New York City until sometime in the 1840s, when they moved to Washington City and resided with Edward William Johnston and Marie Antoinette Estelle Costar Johnston. Jerome died in 1845. Joséphine stayed on with Edward after the death of her daughter, but seems to have moved back to New York City around 1857, probably about the time Edward remarried and was living in St. Louis.  Next document: Probate, April 22, 1858, New York, New York. Anthony M. Costar, legatee of last will and testament of Josephine La Barriere de C. Villegrand, widow, deceased (she died April 6, 1858). Anthony M. Costar, her son. Lucien Costar, Athalide Leger, widow, children of Henry Costar, deceased, a son of said deceased, residing No. 9, East 11th Street, New York, NY, Julia Estelle Costar, Maria Athalide Costar and Henrietta J. Costar, minors, New York, NY, children of Henry R [or P] Costar, deceased, a son of Henry Costar, deceased. John Costar, son, New York, NY.  Source: New York Wills and Probate Records, 1659-1999.