Anna Farquhar Bergengren (pen name, Margaret Allston; December 23, 1865 – ?) was an American author and editor.
Of Scotch-English ancestry, Bergengren's ancestors came to the United States in the time of Cecil Calvert, 2nd Baron Baltimore'ssettling in Maryland, near Baltimore.
She was born in 1865, near Brookville, Indiana, her father being a lawyer and a member of Congress from that state.
Her father's death made her determine upon a career for herself and she chose a musical education, but her health failed while studying in Boston, and she was ultimately obliged to give up singing, in which she had already attained fair success.
She wrote for the Boston Transcript, Detroit Free Press, and Springfield Republican during her musical career.
While studying vocal music in London and Paris, she was employed as a foreign correspondent to the Boston Transcript.
Her story "The Singer's Heart" expressed her professional ambitions.
"The Professor's Daughter" was published in the Saturday Evening Post and was very popular.
Her Boston Experiences appeared in a magazine and ultimately in book form.
Her book, The Devil's Plough, was a story of the early French missionaries of North America.
During her life in Washington, D.C., she obtained the material for her book Her Washington Experiences, her first real success as a writer.
She was also the author of, A Singer's Heart; The Professor's Daughter, 1899; Letters of a Cabinet Member's Wife, 1897.
Bergengren published Her Boston Experiences under pen name of "Margaret Allston", which sold in book form in 1899.
Bergengren also did much other magazine work.
In 1900, she married Ralph Wilhelm Bergengren, a Boston journalist, and continued her literary career.