Anna Mary Monks was born on April 10, 1844, in Pennsylvania to Thomas and Mary Monks. Her father was a plasterer who owned $500 of real estate by 1850. She grew up and attended school in Pocopson, Pennsylvania. She married Henry H. Jackson around 1867, and their daughter Florence was born around 1885. They lived in East Marlborough, Pennsylvania, and her husband worked as a farmer. By 1870, they owned $1,800 of real estate and $600 of personal property. Her husband died on January 30, 1912, and by 1920, she was living in her daughter’s household in East Marlborough. She died there of cirrhosis of the liver on July 28, 1923.