Rose Theodora Piper (October 7, 1917-May 11, 2005) was a painter in the 1940s. She then ran a greeting card company, designed textiles, and raised her family, returning to painting in the 1980s. Piper’s style shifted throughout her career.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Rose_Piper
Blues Singer by Rose Piper
1989 / Mixed media on paper / 24-1/2″x19″ / Petrucci Family Foundation Collection
Rose Piper on Artnet: http://www.artnet.com/artists/rose-piper/