Blues Hall of Fame honoree (1996) Robert Gregg "Bob" Koester founded the Delmark (originally "Delmar") Records jazz label and Chicago's Jazz Record Mart. In his teen years, he became a record trader and collector, even while studying cinematography and business at Saint Louis University, using his dormitory room as his mail-order headquarters. While in St. Louis, he was a founding member of the St. Louis Jazz Club. Moving to Chicago in 1958, he operated Seymour's Jazz Mart in the Roosevelt University Building from 1959 to 1963, then at 7 West Grand Avenue until 1971 when it moved to 4243 N. Lincoln Avenue and, from 2006, to 27 East Illinois Street. Show less «