Margaret Elizabeth Sangster (pen name, Aunt Marjorie;[1] February 22, 1838 – June 3, 1912) was an American poet, author, and editor.

Her poetry was inspired by family and church themes, and included hymns and sacred texts.

Her miscellaneous work included stories, sketches, essays, editorial comment, criticisms, and other writing implied in the journalistic positions she held.

[3] Her literary career began in her seventeenth year, when she wrote and published a book—a child's story—called Little Jamie.

Through her work, she became acquainted with notable people of her era, including Mark Twain and Helen Keller.

[6] Among Sangster's prose works are several volumes of stories for children, and of these, Little Jamie was written when she was seventeen years old.

Sangster grew up a devout member of the Dutch Reformed Church and wrote many hymns and sacred texts.

These include a setting of the Te Deum Laudamus and a hymn called, Thine is the Power, which gained a fair degree of popularity in its time.

[8] She married George Sangster, of Williamsburgh, New York,[4] in 1858, and accepted the care of a family of children, and was a successful stepmother.

Sangster was a member of the Woman's Board of Foreign Missions of the Reformed Church in America,[1] as well as being fond of music and society.