Peters was admitted to practice law in 1836. He practiced for several years in partnership with
David G. Ligon. Peters considered the
Confederates traitors and even wanted to hang
Jefferson Davis and "
all his traitorous set".
Botanist German-American botanist
Charles Mohr praised Peters' botany work, writing in the book
Plant Life of Alabama: "In his love for botany [Thomas Minott Peters] found recreation from his professional duties, and his greatest enjoyment was to wander through the adjacent mountains in search of plants. The study of lichens and fungi attracted him particularly, and he was one of the few mycologists working in the Southern field along with
Curtis and
Ravenel." The rare fern
Trichomanes petersii (
A.Gray 1853) was discovered by and is the namesake of Peters. He also did notable work with the genus
Carex. He left his personal
herbarium to the University of Alabama. == Personal life and death ==