"John and Leni Sinclair were leaders of the counterculture movement in Michigan, organizers of radical social, political, and cultural endeavors primarily in the areas of music, poetry, graphic design, and community welfare projects. During the 1960s and 1970s John Sinclair founded or was active in a variety of political and cultural groups including the Artists' Workshop in Detroit, the Rainbow Multi-Media Corporation, the White Panther Party and its offshoot, the Rainbow Peoples Party; and had ties to various national radical organizations. He was an organizer of the Ann Arbor Jazz and Blues Festival and concerts and managed several rock bands, most notably the MC5. He was arrested for passing marijuana cigarettes to an undercover agent and was the subject of several significant legal proceedings involving government surveillance and wiretapping. After 1979 Sinclair devoted most of his time to writing, music journalism, hosting a radio program and to live performances of his poetry, generally with the accompaniment of a jazz or blues band." - Stephen Meyers; https://findingaids.lib.umich.edu/catalog/umich-bhl-850
