This photograph is of Mary Elizabeth "Betty" Taylor's portrait. She was the youngest daughter of President Zachary Taylor. Betty served as White House hostess in place of her mother, Margaret Mackall Smith Taylor, who was reluctant to go into society and plagued by ill health during her time as the first lady. At the time of her father's presidency, Betty was formally known as Mary Elizabeth Taylor Bliss but was later known as Mary Elizabeth Taylor Dandridge after the death of her first husband and her subsequent remarriage.