Mary Cassatt (American, 1844–1926). Lydia Crocheting in the Garden at Marly, 1880. The Metropolitan Museum of Art, New York. Gift of Mrs. Gardner Cassatt, 1965 (65.184) | This picture represents the artist's sister, Lydia Simpson Cassatt. It was posed at Marly-le-Roi, some forty miles west of Paris, where the artist's family spent the summer of 1880.