What was the name of the Dorothy's cow in 'The Wizard of Oz?'

Dorothy doesn't have a pet cow in the books nor in any of the movie versions of The Wizard of Oz. But in the 1902 stage production, Toto was replaced by Dorothy's pet cow Imogene, probably because it was easier to fit an actor inside a cow costume than a little black dog costume. A cow named Imogene finally appears in the Oz books in Eric Shanower's The Giant Garden of Oz, but other than the name and species, there is no relationship between the two characters. Shanower's Imogene is an Ozian native who gives magic milk.