It was she who thought up the names for a number of her husband 's paintings , including one of his most famous oil paintings , Nighthawks .
Beginning in the mid-1920s Jo became her husband 's only model .
It was Jo who thought up the names for a number of Jo 's husband 's paintings , including one of his most famous oil paintings , Nighthawks .
Beginning in the mid-1920s Jo became her husband 's only model .