P. G. Wodehouse 
Jill the Reckless 

"Jill The Reckless" is a comic novel by P. G. Wodehouse. The heroine here, Jill Mariner, is a young woman from the lower end of the upper class. We follow her through financial disaster, a broken engagement, an awkward stay with some grasping relatives, employment as a chorus girl, and of course, the finding of true love.(Excerpt from Wikipedia)