Whistler

 It's the birthday of the artist best known for a painting of his mother: James Abbott McNeill Whistler, born in Lowell, Massachusetts (1834). His most famous painting was titled Arrangement in Grey and Black No. 1 (1871), but it's more commonly known as "Whistler's Mother." It's a portrait of Anna Matilda McNeill Whistler in a black dress, seated in profile against a gray wall. When Whistler's scheduled model didn't show up for a sitting, he decided to paint his mother instead.