When retrospectives for the Sarasota Art Colony were unveiled earlier this year at Ringling College of Art and Design and at Michael Saunders & Co.’s downtown offices, one prominent local artist wasn’t included. Actually, lots of artists were left out. In post-World War II Sarasota, there were 1,000 artists in a town of roughly 15,000 people, according to Ringling College Chief Curator Tim Jaeger. “With any historical exhibition, there are always difficult decisions to make,” Jaeger says.