On 14 January 1845, Tazewell Dunn was mentioned as a neighboring landowner in a deed from Johnson Games and Elizabeth C. M. his wife of the County of Essex to Silas Conely. [Essex County, Virginia, Deed Book 48, pages 362–363.]

1850 U.S. Census, Essex County, Virginia
Page 91
Dwelling 444, Family 444
Dunn, Tazwell, 25, male, farmer, value of real estate $2,300, born in Virginia
Dunn, Milcey, 23, female, born in Virginia
Dunn, Winter, 6, male, born in Virginia
Dunn, Setton, 3, male, born in Virginia
Dunn, Harvey, 1, male, born in Virginia
Gowdy, Alfred, 23, male, manager, born in Virginia

Tazewell Dunn was mentioned in the 1851 will of his father-in-law Richard D. Dunn, who named him an executor. When the will was presented in court on 17 November 1851, Tazewell declined the position. [Essex County, Virginia, Will Book 27, pages 114–115.]