A Bronco Connection to Michigan?

This may just be a coincidence, but someone has informed me of a town in Michigan called Holly. And to make this better, the towns high school, Holly High School, are known as the Mighty Bronchos. That's not a spelling mistake it's spelled the bronchos or broncos, just a variation in spelling. The town is outside of Detroit and has a population of about 6,000. Pretty cool, i bet they don't say "Roll Pond" though.