Her father, Arthur H. Keller,[6] spent many years as an editor for the Tuscumbia North Alabamian, and had served as a captain for the Confederate Army.[5] Her paternal grandmother was the second cousin of Robert E. Lee.[7] Her mother, Kate Adams,[8] was the daughter of Charles W. Adams.[9] Though originally from Massachusetts, Charles Adams also fought for the Confederate Army during the American Civil War, earning the rank of colonel (and acting brigadier-general). Her paternal lineage was traced to Casper Keller, a native of Switzerland.[7][10] One of Helen's Swiss ancestors was the first teacher for the deaf in Zurich. Keller reflected on this coincidence in her first autobiography, stating "that there is no king who has not had a slave among his ancestors, and no slave who has not had a king among his."[7]
Helen Keller was born with the ability to see and hear. At 19 months old, she contracted an illness described by doctors as "an acute congestion of the stomach and the brain", which might have been scarlet fever or meningitis. The illness left her both deaf and blind. At that time, she was able to communicate somewhat with Martha Washington,[11] the six-year-old daughter of the family cook, who understood her signs; by the age of seven, Keller had more than 60 home signs to communicate with her family.
In 1886, Keller's mother, inspired by an account in Charles Dickens' American Notes of the successful education of another deaf and blind woman, Laura Bridgman, dispatched young Helen, accompanied by her father, to seek out physician J. Julian Chisolm, an eye, ear, nose, and throat specialist in Baltimore, for advice.[12] Chisholm referred the Kellers to Alexander Graham Bell, who was working with deaf children at