Frank Duveneck was lauded as a genius artist in his youth, and when he started teaching, he met Elizabeth Boott. Though their marriage was short, she had a significant impact on his work.
Research:

Behind the Scenes Minis: Piece of Work
17:48

E. Virgil Neal: Hypnotist, Fraudster, Tycoon, Part 2
41:22

E. Virgil Neal: Hypnotist, Fraudster, Tycoon - Part 1
35:28