In 1987 Jim Funk approached the Otis Kansas City council with an idea for a show to both bolster interest in Otis as well as showing off his hobbies and collections. The council was interested, and Old Iron Days was born.

Harry Schneider and Jenny Landers were recruted to help, and the show went on for a decade.

In 1997 the show was successful enough that other exhibitors became interested, and the show became what it is today. A 2 or 3 day show of Engines, Tractors, and Black Powder items from the past. The show has increased and decreased in interest since, but still remains a staple of Otis's year.

In the fall of 2008 Jim Funk passed away, his spirit and presence will be greatly missed, but the show will continue in his honor.