Emma Wedgwood (1808 - 1896) was one of "Uncle Jos" Josiah Wedgwood's two daughters, and thus Charles' first cousin. They had known each other since childhood. Darwin's notes on marriage were written out in July 1838, probably without specific reference to Emma. Charles proposed to Emma in November 1838, and they were married on January 29th, 1839. They were married 43 years, and had ten children.