Conversation so far:
Where are Jerry Garcia's ancestors from?
Jerry Garcia's ancestors on his father's side were from Galicia in northwest Spain.
Where else are his ancestors from?
His mother's ancestors were Irish and Swedish.
What was his fathers name?
Jose Ramon "Joe" Garcia.
what was his mothers name?
Ruth Marie "Bobbie" (nee Clifford) Garcia.
Where was he born at?
He was born in the Excelsior District of San Francisco, California.
What date was he born on?
August 1, 1942.
Any siblings?
second child, preceded by Clifford Ramon "Tiff".
What happened to him as a child?
Santa Cruz Mountains, two-thirds of Garcia's right middle finger was accidentally cut off.

Question: when was his brother born?
Self-contained rewrite: When was Jerry Garcia's brother born?