The name "Gorilla Man" was thought of by Jim Fetzer to mock this guy, and he deserves mocking for trying to impersonate Lovelady. He didn't even look like Lovelady.
How many differences does it take to establish that they're two different men? Answer: one. So, when we see that they have grossly different ears, which they do:
...it means that they are different men.
And, it is insane for Joseph Backes, or anyone else, to deny it just because they don't want it to be true. It is like the stubbornness of a small child.
Different men. Different men. Different men.