Ransom Brewer was mentioned in the list of sale of personal property from the estate of Matthew Brewer.  He received one man (?) valued at $26 and one saddle valued at $6.
255Marengo County Court Minutes:
• page 109, March Term 1841, Book D.  John Gilmore, guardian of Matthew Brewer, a minor, files accounts.
• page 293, March Term 1842.  John Gilmore, Jr., exc. est of John Gilmore, Sr., deceased files account.
• page 293, March Term 1842.  Cite James and John Gilmore, executers of estate of John Gilmore, deceased, who was guardian of Ranson Brewer.
• Page 322, April Term 1842.  Est. Ranson Brewer...  Estate settled guardian discharged.
• Page 323, April Term 1842.  Estate of Matthew Brewer.  Estate appears settled.  Guardian discharged.
This might appear to suggest that Ransom Brewer died in about 1842 and left a dependent child named Matthew, who was placed in the guardianship of John Gilmore, Sr., who also died shortly thereafter.  However, this interpretation is not in accord with other evidence with regard to Ransom Brewer.  Instead, there is evidence that Ransom left his wife Adaline shortly after the birth of their last child in 1843 and married Eliza Roney.
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1845 Tax Roll of Clarke Co, MS
Ransom Brewer 1848 Tax Roll Clarke Co, MS
Ransom Brewer 1853 Tax Roll of Clarke Co, MS
R. Brewer 1853 State Census Clarke Co, MS
R. BrewerM 5  F2  Total 7
Ransom, Matthew, John Ransom, James & George
Eliza, Matilda & Martha 3 instead of 2 
1854 Tax Roll of Clarke Co, MS
[W. Brewer]
[No name Brewer] R. or Ransom??? 
1855 Tax Roll of Clarke Co, MS
[Sarah Brewner]
[W. Brewer]
Nope, not this year. 
1860 Clarke Co, MS Census
R. Brewer 49  ALEliza 45  GA
Matilda 16 MS
Martha 13  MS
John  11  MS
James  11  MS
George  8  MS
Louisa  5  MS
A. Roney 70  GA
[Matthew is not listed] 
1866 State Census of Clarke Co, MS
Ransom Brewer
0401000000/0100100000 Whites 
1866 State Census of Clarke Co, MS
R. Brewer
0400100000/0100010000 Whites
1110000000/1100000000 Blacks 
Males:   Ransom Brewer~~~R. Brewer
10 and under.....0                   0 (w)   1(b)
11-20.....4                                4        1
21-30.....0                                0        1
31-40....*1                              *0         0
41-50....*0                              *1         0
51-60.....0                                0         0
61-70.....0                                0         0
71-80.....0                                0         0
81-90.....0                                0         0
91-100...0                                0         0 
Females:                                            
10 and under..... 0                     0         1
11-20.....1                                  1         1
21-30.....0                                  0         0
31-40.....0                                  0         0
41-50....*1                                 *0        0
51-60....*0                                 *1        0
61-70.....0                                   0        0   
71-80.....0                                   0        0
81-90.....0                                   0        0
91-100...0                                   0        0
0 Blacks ~ Ransom Brewer
5 Blacks ~ R. Brewer 
1866 State Census of Clarke Co, MS
[Mary Brewer]
0100000000/0111000000 Whites
0 Blacks
 
Following from A. J. Stewart, a descendant of Ransom Brewer and Eliza Roney:
My ancestor is Ransom who m first Adeline Woodward (Marengo Co, AL), then Eliza Roney, my gg grandmother.
 
Ransom and Eliza resided in Clarke Co, MS starting in the 1840s (tax records) and are on the 1860 census in Clarke Co, MS. 
 
I believe she was the daughter of John and Ann Roney (listed as Rona) of Green Co, AL (just above Marengo Co) and m first Joseph Haley before Ransom. (I have never located a marriage record for Ransom and Eliza, however.)
1860 Census of Clarke Co MS
Name	        Age
R Brewer	        49
Eliza Brewer	45
Matilda Brewer	16
Martha Brewer	13
John Brewer	11
James Brewer	11
George Brewer	  8
Louisa Brewer	  5
A Roney	        70
In 1870 his wife, Eliza Roney Brewer, was listed on the Lauderdale Co, AL census as Head of Household.
Name	        Age
Eliza Brewer	45
Mathew Brewer	21
John Brewer	18
James Brewer	18
George Brewer	17
Louisa Brewer	16
 
1880 Sumter Co, AL  censuses Eliza Brewer was residing with her son, Matthew Brewer. She died in Cuba, Sumter Co, AL.
Name	        Age
M. E. Brewer	33
Lanis C. Brewer	24
Allice Brewer	  8
Artemus Brewer  6
Charlie E. Brewer 4
Violia Brewer	  1
Elizer Brewer	65