Mary Stevenson Cassatt, "Little Girl in a Blue Armchair" (1877–78), oil on canvas, 35 1/4 x 51 1/8 inches (89.5 x 129.9 cm); National Gallery of Art, Washington, DC (all images courtesy Philadelphia ...

''Little Girl in a Blue Armchair,'' on loan from the National Gallery of Art, Washington, DC, from the Collection of Mr. and Mrs. Paul Mellon, is one of more than 130 works on exhibit at the ...

Reporting from Washington — In 1877, when he was 43, the French impressionist Edgar Degas began stopping by the studio of the 33-year-old American Mary Cassatt and offering her a point or two that ...

I’ve always thought of Mary Cassatt’s paintings as pretty, colorful and sweet — a shiny celebration of mothers, children and upper-class women of the late 19th century. I thought it was cool that ...