Rizen enlisted in 1779 in Col. Francis Marion's mounted Partisans in Georgia. He was wounded by a saber cut and ended up in a hospital and in 1782, married the young woman, Elvira, who had nursed him back to health. Her name was Elvira Catesby JONES (1766-1837) born in Savannah, Georgia. They were married in Burke County, Georgia.
After his daughter Sarah was born, he moved to western North Carolina (the part that was later Tennessee). From there he moved to Logan Co., Kentucky in late 1793, after Rezin Jr. was born.
On Feb. 19, 1800, he moved to Livingston Co., Missouri, on the Ohio River. In 1809, the family moved again (and for good), south to St. Landry Parish, Louisiana. This is where his son Jim Bowie finally grew up.
Rezin and Rhesa, his twin brother's name, are names of Scots origin
Rezin Sr., & Elvira had ten children:
Lavinia BOWIE (1783-1783);born in 1783 in Richmond County, Georgia. and died in 1783 in Burke County, Georgia.
David BOWIE (1884-1803); born in 1784 in Washington County, Georgia. and died in 1803 at age 19.
John Jones BOWIE (1785-1859); born in 1785 in Washington County, Georgia. and died on June 22, 1859 in Bowie Plantation, Chicot County, AR. at age 74
Sarah BOWIE (1786-1815); born in 1786 in Washington County, Georgia. and died in 1815 in Opelousas, Saint Landry Parish, Louisiana at age 29
Martha BOWIE (1791-1845) ; born in 1791 in Burke County, Georgia. and died in 1845 in Shreveport, Caddo Parish, Louisiana at age 54. James Nugent, 2nd Alexander B. Sterret, 1st settler of Shreveport, LA
Mary BOWIE (1792-1842); born on May 4, 1792 in Sumner, TN. and died on August 10, 1842, in Hollywood Plantation, East Baton Rouge, Louisiana at age 50.m. Abraham Bird of Missouri.
Rezin Pleasant BOWIE Jr., (1793-1841); born on September 8, 1793 in Elliott Springs, (near Gallatin) Sumner County, Tennessee. Rezin Jr., married Margaret NEVIL, on September 15, 1814 in the Saint Landry Parish Roman Catholic Church
Jim BOWIE (1795-1836)
Stephen BOWIE was born in 1797 in Elliott Springs, Tennessee. and died on January 29,1833 in Adams County, Mississippi. at age 36. d. 1833, m Mary Compton.
David BOWIE was born in 1798 in Louisiana and died in 1816 in Mississippi, at age 18, drowned in the Mississippi River as a teen. 
Elvira was described as a woman of rugged character and endowed with masculine courage. Raised in the rough school of border life, she was a fit partner for her sturdy spouse.
As indicative of the iron nerve possessed by this remarkable woman, it is said when told her gallant son James had been killed by the Mexicans at the Alamo, she received the news calmly; remarking that she would "wager no wounds were found in his back," stoically resumed her domestic duties. It was from such intrepid parents that their sons inherited the cool courage and indifference to danger for which they were so celebrated through the southwest, and which indeed has made the name a synonym for bravery.
Mrs. Elvira Jones Bowie had several brothers and sisters; one by the name of Seaborne Jones, left a large family; a second was Stephen, and a third settled in Georgetown, DC, all married and have numerous descendants. A sister married a Mr. Lamar.
After the death of Rezin Bowie, his widow, Elve removed to Shreveport, Louisiana and resided with her daughter, Mrs. A.B.Sterrett, until her death in 1838.
Elvira was born in 1766. Elvira Catesby Jones ... He passed away in 1837.
Source: S-1034784950 Repository: #R-2144939563 U.S., Sons of the American Revolution Membership Applications, 1889-1970 Ancestry.com Publication: Ancestry.com Operations, Inc.
Repository: R-2144939563 Ancestry.com Note:
Source: S-1034805421 Repository: #R-2144939563 U.S. and International Marriage Records, 1560-1900 Yates Publishing Publication: Ancestry.com Operations Inc
Source: S-1035467511 Repository: #R-2144939563 U.S., Find A Grave Index, 1600s-Current Ancestry.com Publication: Ancestry.com Operations, Inc.
Source: S-2111779185 Repository: #R-2144939563 Ancestry Family Trees Publication: Online publication - Provo, UT, USA: Ancestry.com. Original data: Family Tree files submitted by Ancestry members. Note: This information comes from 1 or more individual Ancestry Family Tree files. This source citation points you to a current version of those files. Note: The owners of these tree files may have removed or changed information since this source citation was created. Ancestry Family Tree http://trees.ancestry.com/pt/AMTCitationRedir.aspx?tid=5981775&pid=571
It may be possible to confirm family relationships with Elvira by comparing test results with other carriers of her mitochondrial DNA.
However, there are no known mtDNA test-takers in her direct maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Elvira: