[5] The Terre Haute Rex are named after a prominent product with a historic connection to the community.

Rex Coffee, produced by Clabber Girl, the “Imperial blend, fit for a Monarch” was roasted and packed in downtown Terre Haute, with a history dating back over a century.

[6][7][8] The Rex play in the Prospect League's Eastern Conference – Central Division along with the Danville Dans, Dubois County Bombers, Full Count Rhythm, and Normal CornBelters.

"Come On Rex" was written by Alan Barcus, an Indiana State University alum and the composer of the popular song "You're My Cubs!"

[10] The Indiana State University Athletics Department Facilities and Game Management crew were hired by the REX prior to the start of the 2012 season and were named the 2012 Prospect League Rookie Grounds Crew of the Year following the season.