Mary was the daughter of Owen and Elizabeth Martin West.
She married Joshua Betterton on February 26, 1810 in Pittslvania County, Virginia. They had thirteen children. The first three children were triplets.
Infant (1811-1811) Lucy (1811 - 1873) married Samuel Owsley William W. (1811-1885) married Delilah King Sewell Elizabeth (1812-?) married Thomas Radcliff Owen (1813-1886) married Nancy Ann Moon Nellie (1814-?) married Mr. Barr Mary (1815-1893) married Raleigh Garner Eleanor (1817-1870) married James Barr Susannah (1818-1872) married Amos R. Garner Quincy Nathan (1819-?) Isaiah (1823-1890) married Malinda Sewell Levi (1826-?) Pleasant (1830-1906) married Hannah A. Jackson
The sons Quincy Nathan and Levi are identified on the West Family DNA Project but have not been located on later census data. They may have died at or shortly after birth.