I am a Loretta and in all my almost 40 years now, I have only met 1 other Loretta close to my age. It was in college at ISU. All others I've known were at least 20 years my elder.
In 2018, 55 is the most common age for an American (U.S.) Loretta who is registered female with the Social Security Administration. It is the 418th most common female first name for living U.S. citizens.