I've thought about this some. Utah and Juno are specific place names in the United States. Would the average British person in 1944 have even known what Juno is

I've thought about this some. Utah and Juno are specific place names in the United States. Would the average British person in 1944 have even known what Juno is (or where)? This not "New York City" and "Miami". Overlord is not a common word either. The others are more common in usage. Edit: missed the roman goddess not alaska town bit my fault