Following in the footsteps of her sister Lucretia Maria Davidson, Margaret wrote from a young age, producing a body of poems and a diary.

[4] Throughout her life, Davidson cared for her frequently ill mother and studied languages, philosophy, and history, in addition to writing poems and a diary.

[2] Washington Irving wrote Biography and poetical remains of the late Margaret Miller Davidson in 1841; by 1864 the book had twenty editions.

Poe called Margaret a "fairy child," an expression of the reverence for childhood evoked by the Davidsons' beauty, filial devotion, and innocence.

[...] Forgotten today, Lucretia and Margaret Davidson served as a temporary focus for the inner feelings of an outwardly materialistic, expanding America.