Elizabeth was born about 1726. Ethel Crisp Taylor lists Elizabeths birth as 1730 and her death as 1808 (likely error). She also gives and about data for Elizabeth's marriage to William Crisp, Jr., about 1750.  They had at least three children:
Moses Prescott Crisp
Elizabeth Ramsey Crisp
The above children appear in Ethel Crisp Taylors Book.
(The following information auto-imported from Ancestry - this Ancestry profile appears to have been conflated with another family and further research should be done to verify.) Mother of Penina Lucinda Mathews; Moses Prescot Crisp; William R Crisp and Eleanor Nellie Crisp, She is the daughter of Daughter of Richard Ramsey (ca. 1700) and Elizabeth (Sumter) Ramsey (ca. 1705-1830, Wayne, KY). Sister of Nancy Patsey Miller; Catherine Christine DeHart; Isham Ramsey; William Ramsey; Ransom Ramsey and 3 others 
You may find more information on her Find A Grave: Memorial #92129904. This is a Non-Burial memorial and care should be taken to vet all information.
Warning: Check the data: A child's birth date (Ramsey-4235 born 1726) should not be before a parent is six years old (father Ramsey-296 born 1750) .
A birth date (Ramsey-4235 born 1726) should not be more than 60 years before or after a sibling's birth date (Ramsey-2161 born 1811) .
Caution: Unusual information. Is the following correct? A child's birth and death date (Ramsey-4235 born 1726 died 25 Aug 1819) should not be before a parent was 13 years old (father Ramsey-296 born 1750) .
A birth date (Ramsey-4235 born 1726) is more than 40 years before or after a sibling's birth date (Ramsey-300 born 1782) .
Another source shows Elizabeth’s birth as 1730 in North Carolina, and her death in 1808. (I’m fairly certain that this is an error, and should be disregarded)
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It may be possible to confirm family relationships with Elizabeth 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 some percentage of DNA with Elizabeth: