Karl Abt graduated in 1948 with a B.S. in Business Administration (concentration in business management/personnel). While at Northwestern, Abt was active in the NU Band, playing clarinet and bass clarinet, the Christian Youth League, and was a member of the Sigma Nu fraternity. The Karl Abt Papers, filling four boxes, consists of materials from the courses Abt attended. Course syllabi, class notes, tests, and a few short reading assignments are included.