As a writer of fiction, Slosson was most noted for her short stories, written in the style of American literary regionalism, emphasizing the local color of New England.

As an entomologist, Slosson is noted for identifying previously unknown species[1] and for popularizing entomological aspects of natural history.

He was a merchant and local politician in Stonington and became wealthy in the whale and seal fishery industries that were active in New England at the time.

[5] Annie Trumbull Slosson died at her home at 26 Gramercy Park in New York City on October 4, 1926.

[3][4][6] Several others of her family were notable in literary, scientific, and religious life:[4][6] Slosson is considered a significant author in the "local color" (regionalism) movement of the late 19th century.

Literary works by Slosson include: Noted angling story teller, Henry Van Dyke said this about Fishin' Jimmy:[9] The loveliest of all her simple narratives is that which I have chosen to stand near the end of this book,--a kind of benediction on anglers.

Slosson previously had casual interest in botany at an earlier time and had corresponded with noted botanist Asa Gray about her findings near Echo Lake, New Hampshire.

[4] Slosson collected an extensive number of insect specimens in Florida (especially near Miami) as well as New York City and the White Mountains of New Hampshire.

[4][13][10] Over one-hundred newly described insects bear the species epithet slossoni (or slossonae) in her honor,[8] often because she collected the first specimen.