She had a sister, and they both had painting lessons, and where good painters. Those days women did not paint, it was considered, taboo.
Her sister got married, but Mary kept on painting and soon met Degas, and he encouraged her painting, and they became good friends. She was an impressionist painter. Mary became an excellent painter and her paintings are very well known, along with Degas, Manet, Monet, and Renoir.