Conversation so far:
Who was involved in the car crash?
she and her brother Sam.
When was this?
On June 14, 1961.
How did the crash happen?
head-on collision.
Was anyone injured?
The impact threw Cline into the windshield, nearly killing her.
Was her brother hurt?
CANNOTANSWER.

Question: Was anyone else injured besides Patsy?
Self-contained rewrite: Besides Patsy Cline and her brother Sam, was anyone else injured in the car crash?