How did Mary Todd come to be called Mary, dropping her middle name?
Personal preference
Family tradition
Another Ann was born
Legal requirement
Answer
To distinguish herself from her mother and sister-in-law, both named Ann, Mary Todd, the future wife of Abraham Lincoln, began using only her first name. This shift occurred around the time of her marriage in 1842, and she continued to be known as Mary Lincoln throughout her life.
The Life and Legacy of Mary Todd Lincoln: A Quiz on America's Remarkable First Lady