American folk painter who was internationally popular for her naive (naïve art) documentation of rural life in the United States in the late 19th and early 20th centuries.

Anna Robertson had only sporadic periods of schooling during her childhood. At age 12 she left her parents' farm and worked as a hired girl until she married Thomas Moses in 1887. They first farmed in the Shenandoah Valley near Staunton, Virginia, and in 1905 moved to a farm at Eagle Bridge, New York, near her birthplace. Thomas died in 1927, and Anna continued to farm with the help of her youngest son until advancing age forced her to retire to a daughter's home in 1936.

As a child the artist had drawn pictures and coloured them with the juice of berries and grapes. After her husband died she created worsted-embroidery pictures, and, when her arthritis made manipulating a needle too difficult, she turned to painting. At first she copied illustrated postcards and Currier & Ives (Currier & Ives) prints, but gradually she began to re-create scenes from her childhood, as in Apple Pickers (c. 1940), Sugaring-Off in the Maple Orchard (1940), Catching the Thanksgiving Turkey (1943), and Over the River to Grandma's House (c. 1944). Her early paintings were given away or sold for small sums. In 1939 Louis Caldor, an engineer and art collector, was impressed when he saw several of her paintings hanging in a drugstore window in Hoosick Falls, New York. He drove to her farm and bought her remaining stock of 15 paintings. In October of that year three of those paintings were exhibited at the Museum of Modern Art in New York City in a show titled “Contemporary, Unknown Painters.”