Madge Gill, Minnie Evans, Anna Zemánková and Nellie Mae Rowe drew upon nature and spirits in their otherworldly works, offered in Outsider Art and Post-War to Present Auction Highlights Artist & Makers 20th & 21st Century Art Words By Amah-Rose Abrams 13 February 2026 Nellie Mae Rowe (1900-1982), Boy Whispering to Animals, 1980. Pastel and crayon on paper. 18 x 24 in (45.7 x 61 cm). Estimate: $10,000-20,000.