Noted American artist Andrew Wyeth died on January 16, 2009, at his home in the Philadelphia suburb of Chadds Ford, Pennsylvania. According to family members, the 91-year-old Wyeth "died in his sleep" following a brief illness. Wyeth, who was known for his realist paintings including 1948's "Christina's World," continued to paint until the end of his life.DelawareOnline: Artist Andrew Wyeth dies at age 91

One of Andrew Wyeth's most recognizable works, "Christina's World," is on display at the Museum of Modern Art in New York City. The painting depicts a disabled girl crawling through the grass towards a rural house. The girl, Christina Olson, was Wyeth's neighbor in Maine. Wyeth said Olson, who was crippled by polio, "was limited physically but by no means spiritually."MoMA.org: Andrew Wyeth. "Christina's World" TIME: Andrew Wyeth's Stunning Secret (August 18, 1986)

"I do an awful lot of thinking and dreaming about things in the past and the future—the timelessness of the rocks and the hills—all the people who have existed there. I prefer winter and fall, when you feel the bone structure in the landscape — the loneliness of it — the dead feeling of winter. Something waits beneath it; the whole story doesn't show."—Andrew WyethFOX News: Painter Andrew Wyeth Dies at 91 (January 16, 2009)

"I don't consider myself a realist. I suppose you could call it surrealism. I paint what I feel strongly about."—Andrew WyethDelawareOnline: Artist Andrew Wyeth dies at age 91

"One of the greatest artists in American history has died. Andrew Wyeth had a deep understanding of the human condition, which is reflected in his work with astounding fluency. He had everything."—James Duff, executive director of the Brandywine River MuseumDelawareOnline: Artist Andrew Wyeth dies at age 91

"Andrew Wyeth is to me the most solidly American artist of the twentieth century. He continued steadfastly to invest his paintings with deep and metaphoric emotion even when it was completely unfashionable in the period of pop art and abstract expressionism, which was ironic, distant and cool."—Joyce Hill Stoner, family friend and member of the Andrew and Betsy Wyeth Foundation for American ArtDelawareOnline: Artist Andrew Wyeth dies at age 91