Did Helen Keller have sisters and brothers?

Yes, Helen Keller had two siblings. She had an older sister named Mildred Campbell Keller (later known as Mildred Tyson), who was born on June 12, 1886, and a younger brother named James Keller, who was born on June 25, 1890. Mildred was also deaf, although not to the same extent as Helen, while James was not deaf or blind. Sadly, James passed away in 1921 at the age of 31, leaving Helen and Mildred as the only surviving children of Arthur H. Keller and Kate Adams Keller.