Maston Ross Birth date is an estimate - 1780 - 1790 North Carolina, USA He married before 1810 & died before 1860.
Maston & Nancy can't be located on the 1860 census records in Tennessee or anywhere else. Nancy was on the Missour 1870 census reports living with her son. We don't know if Maston moved to Missouri & died there after the 1860 census reports or if he died in Tennessee prior to the 1860 census reports.

His name was Maston Ross, see signature block at the top of the page. He has been incorrectly recorded as Mastin, Masten, Marton & Martin by researchers.

Maston Ross born 1791 NC married Nancy Hodges before 1810 in Grainger County Tn. Nancy was the daughter of Thomas Hodges of Grainger Co TN.

Maston Ross and Willis Carpenter enlisted in the War of 1812, at Rutledge, Grainger, Tennessee on 14 Oct 1813. They served in the 2nd Regiment East Tennessee Volunteer Militia in Captain Thomas Sharps Company commanded by Col Lillard during the Creek Indian War. (Maston apparently never applied for Veteran benefits nor did his widow, so we don't have his war records)
Some researchers have Maston (Martin) Ross as the person that enlisted in North Carolina for the War of 1812, This Martin Ross later deserted. This is not Maston (Martin) Ross who enlisted as Masten Ross in Tennessee for the War of 1812.
When Maston was discharged he & Willis went back to Tennessee, Willis married Maston's sister Elizabeth 1814.

Around 1817-1818 Maston & family moved to Morgan County Alabama; along with his parents Charles & Lucy Ross & Maston's sisters Elizabeth & husband Willis Carpenter also with Rita Ross Morrison & husband.

Maston & Nancy Ross children are as follows;

1. Charles R. Ross "Uncle Charlie" born 1813, Grainger County , Tennessee died 2 Apr 1898 Braymer Caldwell, Missouri, married 7-26-1833 to Francis (Fannie) D. Potts They divorced in 1868. their children,
1A. Albert Ross died before 1850, Caldwell County, Missouri
1B. Harry Ross died before 1850, Caldwell County, Missouri
1C. Clyde Ross died before 1850, Caldwell County, Missouri
1D. James T. born 1-2-1838 Grainger Co Tn died 8-26-1911 Caldwell Co Missouri.
1E. John Gudgel Ross born 1-22-1843, Caldwell County, Missouri, died 9-9-1919, Turlock, Stanislaus, California.
1F. Nancy C. born abt 1846 Missouri
1G. Pleasant P. born 1849 Missouri died 10-3-1925, State Hospital, St. Joseph, Buchanan, Missouri.
1H. Robert Murray born March 1852 Breckinridge, Caldwell, Missouri, died 1921, Collinsville, Tulsa, Oklahoma.
1I. Jacob Riley, born 3-3-1854, Caldwell County, Missouri, died 2-14-1940 Payne County Oklahoma.

2. Nimrod Ross born 1815-1820 Morgan Co AL
3. Dau Ross born 1820-1825 Morgan Co AL
4. Elizabeth Ross born 1828 Morgan Co Al

5. James E. Ross born 1829 Morgan Co Al married 1st on 4-11-1848 in Cannon Co TN to Desa A. Spangler who was born c1813 TN, 2nd to Desa's sister Abigail Spangler Whitamore who was born c1821-1824 in VA and was the widow of Jesse G. Whitamore. They were enumerated in Cannon Co TN in 1850 and 1870, Their Children are as follows:
5A. William S. Ross born 1849 Tennessee married in Cannon Co Tn to Mary Eveline Bush born 11-27-1851 CA, she died in Smith Co TN Her parents were Willis Wm. Bush and Amanda M. Trigg.
5B. Thomas J. Ross born 1852 Tennessee
5C. James Daniel Ross born 1852, Tennessee
5D. Nancy E. Ross born 1857, Tennessee
5E. Malinda Ross born 1860 Tennessee

6. Mary "Polly" Ross born 1833 Tn died 22 Jan 1904 at Fort Worth, Tarrant County Texas.
She is 17, single with son William Ross age 1 & daughter Adaline Ross age 6 months living with her parents on the 1850 Cannon County census.

Name: Maston Ross
Event Type: Census
Event Year: 1850
Event Place: Cannon county, Cannon, Tennessee, United States
Gender: Male
Age: 59
Race: White
Birth Year (Estimated): 1791
Birthplace: North Carolina
House Number: 57
Affiliate Film Number: 872
Household Role Gender Age Birthplace
Maston Ross M 59 North Carolina
Nancy Ross F 58 Virginia

Elisabeth Ross F 22 Alabama (what happened to Elizabeth?)

Mary Ross F 17 Tennessee
Pleasant L Ross M 16 Tennessee (this transcribed as Pleasant L. Ross but in fact was a J. for Jackson Ross)

William L Ross M 1 Tennessee
Adaline Ross - (later took the name of Tubbs)

Living nearby; John Tubbs age 42 head of household with a younger Moses Tubbs living with him.

Mary's children,
6A. William Ross born 1848 Tennessee died before 1855, TN
6B. Adaline P. Ross born 11-9-1849, Davidson County Tennessee died 1-10-1936, Odessa, Lafayette, Missouri
6C. James Monroe Ross born 7-25-1851, Tennessee, died 1-26-1929, Oklahoma City, Cleveland, Oklahoma
6D. Isaac "Ike" Walter Tubbs, born 1-2-1860, Tennessee, died 5-14-1936, Marshall, Saline, Missouri.

Mary moved to Missouri with her remaining 3 children in 1860. Son, William had died by that time. She married Benjamin F. Boley 1861.

MARRIAGE RECORDS OF CALDWELL COUNTY MISSOURI 1845-1871
NAME: Benjamin Boley
SPOUSE: Mary Tubbs
MARRIAGE DATE: 25 Apr 1861
PAGE: page 51
COMMENT: Benjamin Boley, Livingston County Missouri
Boley born 1810, Tennessee, died 26 Oct. 1876 in Badger,Vernon Co Missouri.
Their children,
Monroe Tubbs
Isaac Tubbs
6E. Edward Boley, b 12-26-1863, Missouri, died 8-30-1914, Blue Springs, Jackson, Missouri

6F. Andrew Jackson Boley, born Missouri, died 5-16-1881, El Dorado Springs, Cedar, Missouri.

6G. George Washington Boley, born 3-8-1865, Missouri, died 8-15-1933, Lexington, Lafayette, Missouri

6H. Benjamin Franklin Boley, born 4-8-1868, Missouri, died 4-3-1945, Blue Springs, Jackson, Missouri.

7. Pleasant J. Ross born 1834 TN died before 1900 in Missouri. Pleasant married Ann "last name Unknown" born 1840, children,
7A. Nancy Jane Ross born 1861, Tennessee
7B. Elizabeth Ross, born 1863, Georgia
7C. Mary Ross born 1865, Indiana
7D. Thomas J. Ross born 1869 Missouri
7E. Harvey M. Ross born 1872 Missouri
7F. Josephine Ross born 1874 Missouri
7G. Charles E. Ross born 1877 Missouri

I can't find any census records for Maston or Nancy in 1860. I believe Nancy moved to Missouri in 1860 with daughter Mary & her children & possibly Elizabeth Ross, we can't find any record of her after the 1850 census.

Maston & family moved back to Warren County Tennesse a month prior to Charles Ross death in 1831 according to pension paperwork where Maston applied for his fathers pension. His signature on that document is clearly "Maston" Ross.

Maston sold 160 acres located in Morgan County Alabama at the Huntsville Land Office on the ninth of April 1832. A Charles W. Peters managed the sale for him.

I believe Maston died in 1859 - 1860 in Tennessee which prompted the move to Missouri. There are no 1860 census reports for them.

Nancy is living with son Charles R. on the 1870 Caldwell County Missouri Census reports. She died before 1880.