Jacobi was born Mary Corinna Putnam on August 31, 1842, in
London, England. She was the daughter of an American father,
George Palmer Putnam and British mother, Victorine Haven Putnam, originally from
New York City. She was the oldest of eleven children. At the time of Jacobi's birth, the family lived in London because her father George was establishing a branch office for his New York City publishing company,
Wiley & Putnam. In 1848, at the age of six, Jacobi moved with her family from London to New York, where she spent the rest of her childhood and adolescence. Mary was educated at home by her mother before attending a private school in
Yonkers. Later, she attended a public school for girls on 12th Street in
Manhattan, from which she graduated in 1859. After graduating, she studied
Greek, science, and medicine privately with
Elizabeth Blackwell and others. As a teenager, Jacobi published
short stories in
The Atlantic Monthly from the age of fifteen, and later in the
New York Evening Post. == Career ==