Claim: The man, who wanted to establish a festival for blue grass music and collaborated with Sheri Sternberg and Dawn Holliday to produce the festival, which eventually became the Hardly Strictly Bluegrass, is Warren Hellman.
Evidence: Hellman first mentioned his dream of holding a festival for bluegrass music in the park to Jonathan Nelson in 2001. Holliday and Sternberg agreed to help and would continue to produce the festival, respectively, each year thereafter.