There was a bionic kids in the TSMDM show I think, right now I can't google it ..I used to misremember that Barney Miller/Hiller in "The Seven Million Dollar Man" was a failed prototype, so I was surprised when I rewatched the episode and they said he was made after Steve.
Didn't it eventually get revealed that Max the Bionic Dog was the first prototype? So it would be Max, Steve, Barney, Jamie. And then a few people in the revival movies, though I'm not sure if anyone else was bionicized in the interim. I have a vague impression of the first revival movie establishing that Rudy had moved into developing regular-strength bionic prosthetics for general medical use, but I could be misremembering.
Edit: Found!
The Bionic Boy
Andy Sheffield, a once-athletic youngster living in a small Utah town, has been selected by an OSI computer to receive an implant to restore his paralyzed legs, which were injured in a landslide that killed his father - a controversial figure. The implant gives Andy great physical power as he...