Please someone..what's my name?

A neighbor gave me this canna..no name. After looking in plant files I'm torn between Florence Vaughan and Yellow King Humbert. Can anyone say for sure?

another picture

I was told that they are one in the same...I have it too. I have seen it a couple of places and they seem to use either name...not sure...I hope someone else responds for you.

Thanks....I was thinking they might be one and the same.