Conversation so far:
What songs did Carl Switzer produce?
Whats so important about Carl Switzer's personal life?
Who is Carl Switzer's family members?
Carl Switzer was born in Paris, Illinois, the third and last son of four children born to Gladys C. Shanks and George Frederick Switzer. The oldest brother died in 1922.

Question: who is collingwood?
Self-contained rewrite: Who is Collingwood and their relationship to Carl Switzer?