Conversation so far:
Where was Elkie born?
in Broughton.
Who were her parents?
Marjorie Violet "Vi" (nee Newton) and Kalmon Charles "Charlie" Bookbinder.
Did she have any siblings?
Her older brother is Anthony Bookbinder.
Did she have any other musicians in the family?
Her older brother.

Question: What instrument did he play?
Self-contained rewrite: What instrument did Anthony Bookbinder play?