Bonnie is the daughter of Drew MacFarlane, the owner of MacFarlane's Ranch and has spent her whole life working on the ranch with her father. When she was young, her father hired a "French" governess (who Bonnie suspected of not truly being French, due to the fact she spoke Russian) to teach her and keep her civilized. She had six brothers, but five of them died from either illness or foolish choices. Her sole surviving brother, Patrick MacFarlane, moved to New York, where he supposedly works as a banker in Manhattan. With the majority of her generation deceased and the only other surviving male child leaving the family, Bonnie feels it is up to her to become the "man" of their family's ranch.