21. Waly, Waly Collection: Concert Programs (SOM) Contributers: Dougherty, Celius (arranger), William Warfield (bass-baritone), and Robert Ray (pianist) Performance: Faculty Voice Recital Performance Date: 1977-02-01 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.26 p.50
22. Water Boy (Work Song) Collection: Concert Programs (SOM) Contributers: Robinson, Avery (arranger), William Warfield (bass-baritone), and Robert Ray (pianist) Performance: Faculty Voice Recital Performance Date: 1977-02-01 Location: Music and Performing Arts Library, University of Illinois Concert Program: v.26 p.50