A painting done by a grandmother for her grandchild, at a birthday party planted an idea in curator Brett Yasko’s mind. The artwork reminded him of paintings by Joseph Yoakum he had just seen at the Carnegie Museum of Art . “Why is one artist in this gallery and his work will be seen by thousands of people, and this other artist, her painting might be seen by a handful of people. It will sit on a night stand,” Yasko wondered.