Not gonna lie, Wyatt Earp is who I think of every time I hear Wyatt.
I also do but I can imagine it would get annoying with everyone commenting. I think there are very very very few names that people don't associate with something, mispronounce, or just get totally wrong. I have a Trent. Not made up, easy enough to spell, not odd. Yet anyone over say the age of 60 I have to repeat it 10 times because they think I said Tent.