On that path to freedom, Harriet Tubman had one piece of advice.

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Larry Bittner, a lawyer who campaigned with Mrs Rathbun, said she had the strength of purpose of Harriet Tubman and Sojourner Truth, two former slaves who became prominent in 19th-century reformist movements in America.

ECONOMIST: Mary Jane Rathbun | The

Du Bois, Sojourner Truth and Harriet Tubman.

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