Knapp was born in the North East United States and as a child emigrated to Canada. Upon completing a Fine Arts degree at York University in Toronto her initial career choices led her back to the States working as a gallerist and setting up a studio. Knapp has maintained a professional visual art career, based in Atlanta for over 40 years. With an ongoing studio art practice, she has maintained a steady exhibition schedule with galleries, university exhibition opportunities and regional museums. Her works on paper and large, almost mural-like canvas pieces have been collected and commissioned widely throughout the United States and internationally. With an entry into the public art field she has found a place for her sculpture and site specific works, commissioned widely for corporate spaces, medical facilities, libraries and convention centers.