She wrote under the pseudonym m-n.[1] She lived in the United States between 1850 and 1856, and she is foremost known for her travel book about her life in North America, which belongs to the earliest literature published of a Swedish emigrant as well as a Swedish female emigrant to the USA.
[2] She was born to the merchant Fredrik Nettelbladt and Carolina Elisabet Charlotta Lochner.
In 1850, her father died, and she left for North America in the company of her friend Hedvig Eleonora Hammarskjöld.
She supported herself as a governess and by giving lessons to rich women in embroidery and the manufacture of artificial flowers and decorations by wax and feathers.
On one hand, she described that many enslaved people gave the impression of being content and treated well, and compared it to the treatment of the poor in Sweden; but on the other hand, she described her indignation by witnessing a white woman beating her slaves, and stated that she was categorically opposed to all forms of slavery.