In 1850 she married Jurgen Edward Pfeiffer, a tea merchant born in the
Duchy of Holstein. Shortly before her marriage she fell into a state of physical prostration, which threatened to become permanent, and which in part lasted for about ten years after that event. During this time every mental exertion, even reading, was prohibited. When at last —thanks to the care of her husband— she recovered a degree of health, it was clear that this long time in which she had worked on her recovery, so far from being lost to her, assisted the development of her powers. Pfeiffer was a prolific writer, publishing several books and compilations of poems. ''Gerard's Monument'' (1878) secured for Pfeiffer a place among English poets. A time of happy activity now succeeded. Pfeiffer became an enthusiastic, though temperate, advocate of women's claims. She introduced into
London society her graceful "Greek Dress." Together with her husband, she gathered round her a circle of distinguished literary and artistic friends, and produced her books in quick succession. Though a most conscientious worker, she wrote with great facility. Her poems mostly formed themselves in her mind before they were committed to paper; and the manuscripts of her prose works were frequently sent to the printer, with but few corrections, as they were first written. The book which followed ''Gerard's Monument
was a volume of Poems
containing some 30 sonnets, which at once established the reputation of the writer as a sonneteer. Glan Alark
succeeded, and after that Quarterman's Grace
. In little more than a year appeared Ender the Aspens
, shortly to be followed by Songs and Sounds
. In 1884 she issued The Rhyme of the Lady of the Rock
. Between these volumes of poetry Pfeiffer wrote her book on Women and Work
, various essays on this and other subjects, published in the Contemporary Review
, as well as Flying Leaves from East and West
; the latter, perhaps, of all her books the one best known to American readers. The work which secured for Pfeiffer her highest fame as a poet was the volume of Sonnets'' which came out in 1887.
Flowers of the night, a collection of sonnets published in 1889 after the death of her husband, dealt with themes of grief and consolation as well as the disadvantageous legal position of women. They possessed a deep pathetic interest, independent of their intrinsic merit. In the loss of her husband, the heaviest sorrow fell on the poet. The poems were the product of nights of
insomnia, brought on by having continued anxiety, the anguish of which they in some measure relieved. ==Personal life==