Finnish painter Helene Schjerfbeck lived from 1862 to 1946. In 2007-08 she was the subject of an exhibition that traveled to museums in Europe, as described here, but it seems her fame remains pretty well confined to Scandinavia. As far as I can discover there has never been any exhibition of her work in the United States at all, but I am sure that will change one of these days, as she is bound in the fullness of time to become better known.
Image sources are here and here and here and here.
A well-illustrated biographical sketch (in French) is here.