In eighteen sixty, at the age of seventeen, Mary began classes at the Pennsylvania Academy of the Fine Arts.

1860年，17岁的玛丽时候开始在宾夕法尼亚艺术学院学习。

In fact, she was the first full-time female instructor at the Pennsylvania Academy of the Fine Arts, and she was a full member of the National Academy of Design.

事实上，她是宾夕法尼亚美术学院的第一位全职女教师，也是美国国家设计学院的正式成员。