This looks like one of Richard and Sarah's sons:

Tennessee, Death Records
Name: George L. Brewer
Event Type: Death
Event Date: 15 Aug 1938
Event Place: Lawrenceburg, Lawrence, Tennessee
Gender: Male
Marital Status: Single
Race: White
Age: 64
Birth Date: 1864 ( this does not look right died 1938 age 64 = b 1874)
Birthplace: Tenn.
Father's Name: Richard M. Brewer
Father's Birthplace: Tenn.
Mother's Name: Sarah Lackey
Mother's Birthplace: Tenn.
Occupation: Farmer
Residence Place: Waynesboro, Tenn.
Burial Place: Walnut Grove
Burial Date: 16 Aug 1938
Digital Folder Number: 004183432 , Image Number: 00739 , GS Film number: 1876866 , Reference ID: cn 17646

Another child's death:

Tennessee, Death Records
Name: Snow Mcmillen Brewer
Event Type: Death
Event Date: 01 Jul 1942
Event Place: Wayne, Tennessee
Gender: Male
Marital Status: Married
Race: White
Age: 54
Birth Date: 16 Aug 1887
Birthplace: Wayne, Tenn.
Spouse's Name: Mrs. Milton Brewer
Father's Name: Richard M. Brewer
Father's Birthplace: Wayne, Tenn.
Mother's Name: Sarah Lackey
Mother's Birthplace: Giles, Tenn.
Occupation: Farming
Address: R. 4
Residence Place: Waynesboro, Wayne, Tenn.
Cemetery: Walnut Grove
Burial Place: Wayne Co.
Burial Date: 02 Jul 1942
Digital Folder Number: 004184478 , Image Number: 00887 , GS Film number: 1876913 , Reference ID: cn 15793

Wife of George ?

Tennessee, Death Records
Name: Mary Jane Brewer
Event Type: Death
Event Date: 05 Dec 1959
Event Place: Rural, Wayne, Tennessee, United States
Gender: Female
Age: 87
Race: White
Birth Year (Estimated): 1872
Father's Name: Richard Brewer
Mother's Name: Sarah Lackey
Spouse's Name: George Brewer
Spouse's Gender: Male
GS Film Number: 001878123 , Digital Folder Number: 007552502 , Image Number: 02317

Might be worth checking this out:

Richard M. Johnson Brewer
BIRTH 26 May 1843 Wayne Co., Tennessee

DEATH 9 April 1914 Wayne Co., Tennessee

BURIAL Wayne Co., Tennessee

PARENTS:

MOTHER Elizabeth Wilson
FATHER George W. Brewer

MARRIAGES

SPOUSE
Sarah Paster M Lackey

MARRIAGE 31 March 1861 Lauderdale Co., Alabam

.......................................................................................

1880 census
Name: Richard M. J. Brewer
Age: 37
Birth Year: abt 1843
Birthplace: Tennessee
Home in 1880: District 11, Wayne, Tennessee
Race: White
Gender: Male
Relation to Head of House: Self (Head)
Marital Status: Married
Spouse's Name: Sarah P. Brewer
Father's Birthplace: Tennessee
Mother's Birthplace: Tennessee
Occupation: Farmer
Cannot read/write:

Richard M. J. Brewer 37
Sarah P. Brewer 35
James L. Brewer 17
Jacob P. Brewer 15
Nancy E. Brewer 13
Dora A. Brewer 10
Mary J. Brewer 8
George L. Brewer 6

Death
Name: Richard M Brewer
Birth Date: 26 May 1843
Birth Place: Tennessee
Age: 70
Death Date: 9 Apr 1914
Death Place: Waynesboro, Wayne, Tennessee
Burial Date: 10 Apr 1914
Burial Place: Wayne County, Tennessee
Gender: Male
Race: White
Marital Status: Married
Occupation: Farmer
Father's name: Geo Brewer
Father's Birth Place: Tennessee
Mother's name: Elezibeth Wilson
Mother's Birth Place: Tennessee
FHL Film Number: 1299632

1900 Census
Richard M Brewer
Age: 57
Birth Date: May 1843
Birthplace: Tennessee
Home in 1900: Civil District 4, Wayne, Tennessee
Race: White
Gender: Male
Relation to Head of House: Head
Marital Status: Married
Spouse's Name: Sarah P Brewer
Marriage Year: 1861
Years Married: 39
Father's Birthplace: Tennessee
Mother's Birthplace: Tennessee
Occupation: View on Image
Neighbors: View others on page
Household Members:
Name Age
Richard M Brewer 57
Sarah P Brewer 55
George L Brewer 24
William K Brewer 21
Snow W Brewer 12
William M Brewer 7

Pvt Richard McMillian Johnson Brewer
Memorial

Birth: May 26, 1843
Wayne County
Tennessee, USA
Death: Apr. 9, 1914
Wayne County
Tennessee, USA

Richard is the son of George W Brewer and Elizabeth Wilson.
He also served during the Civil War. He was in the 2nd Mounted Tennessee Infantry. Company E. (Union) (bio by: Arie Donaldson)

Family links:
Spouses:
Sarah P.M Lackey Brewer (1844 - 1932)
Sarah Porter Lackey Brewer (1844 - 1932)

Children:
James Henry Brewer (1862 - 1949)*
Mary Jane Brewer Brewer (1872 - 1959)*
George L Brewer (1874 - 1938)*
Snow McMillian Brewer (1887 - 1942)*

*Calculated relationship

Inscription:
Richard M. Brewer CO E. 2 Tenn Mtd Inf.

Note: son of George W. Brewer and Elizabeth Wilson; husband of Sarah P. Lackey, married 31 Mar 1861 Florence, Lauderdale County, Alabama

Burial:
Walnut Grove Cemetery
Wayne County
Tennessee, USA

Marriage:
Name: Pleas Nutt
Spouse's Name: Sallie Churchwell
Event Date: 26 Aug 1897
Event Place: , Wayne, Tennessee
Indexing Project (Batch) Number: M51981-3 , System Origin: Tennessee-VR , GS Film number: 549276 , Reference ID: 2:25LMXW9

United States Census, 1910
Name: Pleas Nutt
Event Type: Census
Event Year: 1910
Event Place: Civil District 6, Wayne, Tennessee, United States
Gender: Male
Age: 33
Marital Status: Widowed **
Race: White
Race (Original): White
Relationship to Head of Household: Head
Relationship to Head of Household (Original): Head
Birth Year (Estimated): 1877
Birthplace: Tennessee
Father's Birthplace: Tennessee
Mother's Birthplace: Tennessee

Pleas Nutt Head M 33 Tennessee
Lytle Nutt Son M 15 Tennessee (not easy to read age could be 13,15 or 18)
Jimmie Nutt Daughter F 11 Tennessee
Fred Nutt Son M 9 Tennessee
Theo Nutt Daughter F 2 Tennessee
Florence Churchwell Sister-in-law F 36 Tennessee

District: 132 , Sheet Number and Letter: 10A , Household ID: 170 , Affiliate Name: The U.S. National Archives and Records Administration (NARA) , Affiliate Publication Number: M1283 , GS Film number: 1375537 , Digital Folder Number: 004450068 , Image Number: 01255

Pleas may have remarried

Tennessee State Marriages
Name: Pleas Nutt
Gender: Male
Marriage Date: 12 Sep 1910
Marriage Place: Lewis, Tennessee, USA
Spouse: Nettie Dobbs

thank you sorry this so late coming I appreciate the information