Mildred Keller was younger sister of Helen. Helen disliked her in starting but started to like her after getting education. Mildred was humble towards her sister. She studied with Helen at Cambridge school.
The younger sister of Helen Keller. For a long time, Helen regarded her little sister as an intruder on her mother\’s attention. Eventually, the two developed a close relationship, though Mildred was never truly able to understand Helen\’s finger language. Mildred also attended the Cambridge School with Helen for six months.