Common Exhibitions of William S. Robinson and Thomas Alexander Harrison

  • May 2‒Jun 30, 1910 Fourteenth Annual Exhibition
    Pittsburgh: Carnegie Institute
  • Apr 27‒Jun 30, 1911 Fifteenth Annual Exhibition
    Pittsburgh: Carnegie Institute
  • Apr 25‒Jun 30, 1912 Sixteenth Annual Exhibition
    Pittsburgh: Carnegie Institute
  • Apr 24‒Jun 30, 1913 Seventeenth Annual Exhibition
    Pittsburgh: Carnegie Institute