@Book{OL23663076M,
    title: {Personal memoirs of U. S. Grant.},
    author: {Ulysses S. Grant},
    publisher: {C. L. Webster},
    year: {1892},
    place: {New York, NY},
}

@Author{OL231200A,
    name: {Ulysses S. Grant},
    birth_date: {1822}
    , death_date: {1885}
}