Who was Dexter Freebish

Factual Questions
1

There is a band that now has that name. There used to be a roller coaster at Astroworld named that.

My guess is he was someone who ran some carny back in 19th or early 20th century.

Anyone know?

2

There’s an ode to the roller coaster on their website:

http://www.dexterfreebish.com/news.html