I saw your post and I thought I might could help. At least I hope I have found enough to help you. I will start with the deaths that I found. I did all of my research in FamilySearch.org also in FamilySearch.org/genealogies.
Lafayette Coats -Died 19 May 1933 - Hamblen County, Tennessee . Widowed, white, age 73
Birth - 18 June 1859 - Birthplace; N.C. Father's name: John Coats B/p - N.C. Mother's name is Sussen Carroll -Birth place N.C. - Occupation; Farmer --- Cemetery Dover Cemetery - Burial Date 21 May 1933
John Coats - Death 24 May 1938 Kingsport, Sullivan, Tennessee. male, white, widowed age 84; Birth 27 Nov 1853 Birth -Tennessee, Father - John Coats, mother - Susan Carroll; Occupation- Farmer; Burial Place Sulfer Springs; Burial date 25 May 1938
U.S. Civil War Soldiers Index
Name: John A Coats; Also known as Name; John A Coates; Event Type; Military Service; Military Beginning Rank- Private; Military Final Rank- Private; State or Military Term - Tennessee; Military Unit - 8th Regiment Tenn Cavalry; Military Co.- K
1860 U.S. Census Sullivan, Tennessee
John Coats - m- 40 -Alabama; Susan Coats -F- 38- N.C. ; Amanda Coats- F - 16- Tenn. ; William Coats - m- age 13 - Tenn; Sarah A. Coats -F- 8 -Tennessee; John C Coats - m- 6 - Tenn. ; Nathan B. Coats -m - 3 - Tenn; M L C Coats - m - age 0 - Tennessee (the last one could be Marcus Lafayette)
John A Coats - Pension - 1880 - Beneficiary's name Susanna Coats
1870 Tennessee Census
John A Coates - m 51 Alabama b. 1818-1819; Susan Coates - F - 50 - N.C.; Sarah A. Coates -F - 19 -Tennessee; John Coates -m - 16 Tennessee; Lafayette Coates - m - age 10 - Tennessee
John A Coats - Death - July 20, 1892 Sullivan, Tennessee; Fall Branch, Tennessee
While I was in FamilySearch.org I went thru the genealogies to see of someone else has already put him him and sure enough someone had, this is what I found; J. Green/ Coats 1819 -1891; J. Anderson /Coats; Susanna Carroll/ 1821- 1888. Children; 1. Mary Amanda Coats 1843 - 1900; 2. William P. Coats - 1845- 1922; 3. Sarah Ann Coats - 1850- 1927; 4. John Anderson Coats -1852- 1938; 5. Nathan B. Coats -1856-1870; Marcus Lafayette Coates - 1859- 1933. I also found this and I am not sure about this but maybe it will help.
1. Christopher Parker -1827-1913; married Mary Amanda Coats 1843-1900, 2. William P Coats 1845- 1922 married Martha E. Coats -1845- 1918. 3. Willie H. Good -1851 - ? married Sarah Ann Coats 1850 -1927; 4. John Anderson Coats 1852-1938; married Martha A Coats -1854-1921; 5. Nathan B Coats -1856-1870; possibly never married, 6. Marcus Lafayette Coates 1859- 1933 married a Sarah Catherine Gregg -1858-1928;
I could not find or locate John Anderson Coats parents; however on the genealogies in FamilySearch.org it did list her parents. And they are; Sterlin Carroll -1805-1881 Wife; Elizabeth R. Moore -b.1811- 1850 . They had 11 children which I won't name here, but if you need help then please let me know. I will go back and get them for you.
This is all I have for you so I do hope it helps. If you need more help then please let me know. Nancy