Where was Helen Keller born?

When did Helen's father build the house?

What could Helen pipe out at the age of six months?

Fill in the blanks.

1. Casper Keller, Helen's ancestor, settled in _______________.
2. The old-fashioned garden of lvy Green was the _______________ of Helen's childhood.
3. Helen's mother wished to call her _______________ after her own mother.
4. Helen, as a child, would always insist upon _______________ what other people did.
5. Once, as a child, Helen attracted everyone's attention by saying _______________ quite plainly.
6. Helen's illness was diagnosed as congestion of the _______________ and _______________.

Write a short note on Helen's family background.