We see the last name, “Fox” in the Storybrooke graveyard…the tombstone of Margaret Fox and also Catherine Fox. Margaret and Catherine are the first names of two of the Fox sisters. They were spiritualism frauds who tricked a lot of people. One particular ruse they used was dropping an apple under their skirt in order to produce noises made by spirits.
I don’t know if this ties in with Cleo Fox but it is interesting that the name Fox is in the graveyard.