2. Ann Landers and Abigail Van Buren

Ann Landers and Abigail Van Buren were born in Sioux City, Idaho on July 4, 1918. Though identical twins, the two sisters didn’t look too much alike, as Landers had surgery to correct a deviated septum. However, both were seen as idols to many women during their time. The twins worked together and even had a joint wedding. When Landers started her 1955 column, Abigail also decided to write one of her own after helping her sister. Both women soon became very popular columnists and even became competitive at one point which drove them to not speak to each other for about 10 years. Known for their famous Dear Abby, the sisters are said to have received about 15,000 letters each week with about 200 million readers.