Her father is African-American and her mother is Irish. Jennifer was born in the US.
There are thousands of ethnic groups. Search Wikipedia, it can lead to some good sources on ethnic groups. The only "3 peoples" idea I can think of is the 19th century anthropological idea of "Negroid, Caucasoid and Mongoloid" races of humanity.
Gulstan Dart is an American journalist known for his work in television news. While he has not publicly identified his ethnicity, he is often recognized for his diverse background. However, specific details about his racial or ethnic background, including whether he identifies as African American, are not widely available.
Propylene Glycol (PG): An active component in many African American or Ethnic hair care products, make up, lotions, mouthwashes, and deodorant, PG is the active component of anti-freeze and actually deteriorates the protein and cellular structure of African American or Ethnic hair. Protein is what your hair needs to thrive. Workers actually use gloves and goggles when dealing with this substance due to its chemical side effects and toxicity.
IQ has no correlation with ethnic groups.
african -american
Winfrey's* She is African American and Native American.
Some types of ethnic groups are Native American,Christian, or African American
african american!
African American
African American
She is African-American.
The answer is in the question; Americans that have African continental heritage.
Winfrey's* She is African American and Native American.
Black Or African American
African American.
African American and Caucasian