She earned a teacher's certificate and began teaching when she was 16, but because Marshall did not have a high school until 1910, she did not receive her high school diploma until 1913, when she was already 23 years old.
She earned a teacher's certificate and began teaching when she was 16, but because Marshall did not have a high school until 1910, she did not receive her high school diploma until 1913. She was already 23 years old.