About Mary Anne Schimmelpenninck
Mary Anne Schimmelpenninck (née Galton, 25 November 1778 – 29 August 1856) was a British writer in the anti-slavery movement. When about eighteen Mary Anne visited her cousins, the Gurneys of Earlham Hall, and Catherine Gurney, the eldest daughter, remained her friend through life. Mary Martha Butt met her at Bath about 1801, and described her as simple, agreeable, and unaffected.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.