Which Woodstock co-founder co-financed the festival with John P. Roberts?

Joel Rosenman co-financed the Woodstock festival with John P. Roberts.

Rosenman and Roberts were business partners who became involved after placing advertisements seeking interesting business proposals. Michael Lang and Artie Kornfeld initially approached them with an idea for a recording studio in Woodstock, New York. Roberts and Rosenman instead proposed developing a major outdoor concert, helping turn the studio concept into the festival that became Woodstock.

The four men are generally identified as Woodstock’s founders: Rosenman and Roberts supplied financing and business leadership, while Lang and Kornfeld brought concert-promotion and music-industry experience. Roberts was an heir to the Polident and Poli-Grip fortune, while Rosenman had trained as a lawyer and pursued writing and venture-capital work.

The wrong options represent other important figures but not the requested financial partner. Michael Lang was the principal promoter, Artie Kornfeld was a musician and producer, and Chip Monck served as a stage announcer and production figure. The financial partnership was Roberts and Rosenman.