Answer:
according to someone on answers.com,
They did because The Golden Age of Man was during Kronos' reign, so that implies that men were there, not to mention I believe in The Last Olympian, Chiron tells Percy that the age of Titans was called the Golden Age, but was really just a euphemism. So, I believe according to some myths and whatever Rick Riordan has written, there were humans in the age of the Titans.
