Anna Sophina Hall (August 7, 1857 – December 17, 1924)^[1] was a leading figure in the movement to legalize euthanasia in the United States during the first decade of the 20th century.

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Anna Sophina Hall^{[citation needed]} was born to Charles Francis Hall, an Arctic explorer.^[2]

Her letter-writing campaign attracted such prominent women as The New York Times columnist Lurana Shelton and co-founder of Volunteers of America and former Salvation Army officer Maud Ballington Booth to the euthanasia cause. As a result of her efforts, the Ohio state legislature came within 54 votes of legalizing the practice in 1906.

Hall died on December 17, 1924, in Cincinnati. She was cremated at the Cincinnati Crematory.^[2]