Although the death year on the slab reads 1893, the 1892 newspaper obituary gives proof of the correct year.
Also Confederate Widow's Pension Application shows death date as January 20, 1892.
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"The LaFayette Sun" - February 3, 1892:

Obituary.

Thomas B. Leverett was born in Putnam County, Georgia, November 27th, 1819. His father moved to Troup County, Georgia, about 1836, and from there to Chambers, where he spent his life. Thomas B. Leverett was married October 2nd, 1845, to Mary Ann Atkinson; eight children were the fruits of this marriage, five of whom still live. Mr. Leverett, from early manhood was a member of the Baptist Church and in that faith he died, January 20th, 1892. He was a great lover of Masonry and appreciated very highly the exalted teaching of that ancient Order. Mr. Leverett was an industrious man and his was a busy life. A kind husband and father, a clever neighbor and patriotic citizen, he lived a long life and fulfilled his mission. He will be missed by his church, his lodge and his neighbors; but worst of all will be missed around the hearthstone when the family gather day after day. A fitting tribute was paid to his memory the day his body was laid to rest. In the meeting house he loved, many relatives and friends gathered about his encoffined body and dropt a tear at his grave. Dr. Bledsoe, the pastor, preached an appropriate sermon, when the Masons took charge of the body and buried it according to their ancient rites. Dear old friend and brother, rest in peace!
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1850 Coosa County, AL Census:

#H1198

Thomas Leverett 32M Farmer R$400 (2-Slaves) Born GA
Mary Ann Leverett 25F Born GA
Gideon Leverett 3M Born GA
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1855 Chambers Co., AL Census:

T. B. Leverett
1 male under 21
1 male over 21
2 females under 21
1 female over 21
4 slaves
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1860 Chambers County, (Northern Div.) AL Census:

#H793

Thomas B. Leverett 41M Carriage Maker R$300 P$6,000 (5-Slaves) Born GA
Mary A. Leverett 30F Born GA
Gideon L. Leverett 13M Born GA
Sarah J. Leverett 10F Born AL
Martha A. Leverett 7F Born AL
Mary E. Leverett 4F Born AL
Infant Leverett 6/12F Born AL
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1870 Chambers County, (Beat 9) Census:

#H9

Thomas Leverett 51M Farming P$150 Born GA
Mary A. Leverett 46F Keeping House Born GA
Gideon L. Leverett 23M Machinist P$400 Born GA
Sarah J. Leverett 19F At Home Born AL
Martha Leverett 15F At Home Born AL
Mary Leverett 12F At Home Born AL
Ella Leverett 11F At Home Born AL
Malinda Leverett 7F Born AL
Ida Leverett 4F Born AL
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1880 Chambers County, (LaFayette) AL Census:

#H439

Thos. B. Leverett 60M Miller Born GA
Mary A. Leverett 53F Wife Keeps House Born GA
Ella Leverett 19F Daughter Born AL
Malinda Leverett 13F Daughter Born AL
Ida Leverett 12F Daughter Born AL
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