That's who I'm looking for. It's a typo. His name is Jon. I think he ran 51.3 at that meet. Thanks for your input.
According to the prelim results listed in the DDN published on May 29, 1997, the 8 400m runners who advanced to the finals were:
1. David Dingeman, Dayton Christian, 49.2
2. William McCauley, Greenon, 49.9
3. Roger Clark, London, 50.0
4. Aaron Grant, Middletown Madison, 50.2
5. Brad Haas, Spr. Northwestern, 50.5
6. Kevin Lucas, Eastern Brown, 50.6
7. Jasper Core, Northridge, 51.1
8. Mark Trempe, Graham, 52.0
Daddabbo's time of 51.6 placed 2nd in the district final held at Amelia on Saturday May 24, 1997 (found result in the May 25 edition of the Enquirer).