Conversation so far:
Where was Paul Watson born?
According to the Sea Shepherd Conservation Society, Paul Watson was born in Toronto to Anthony Joseph Watson and Annamarie Larsen.
When was Paul Watson born?
Paul Watson was born December 2, 1950 (age 68)
Who were Paul Watson's parents?
Paul Watson's parents were Anthony Joseph Watson and Annamarie Larson

Question: Did he have any siblings?
Self-contained rewrite: Did Paul Watson have any siblings?