Complex sentence: Gerardine Macpherson (c.1830 or 31--1878), Biographer and illustrator, niece to literary and art critic, Anna Brownell Jameson, she was born Gerardine Bate, nickname "Geddie" in London, England.
Split into simpler sentences: Gerardine Macpherson (c.1830 or 31--1878), was a 19th-century English biographer and illustrator. She was born Gerardine Bate, nickname "Geddie" in London, England.