Who do you believe?

Who do you believe got the other two pokemon, in 'Pokemon! I Choose You!'? Well, didn't Shigeru/Gary get Squirtle? We know Ash starts out with Pikachu, because all the other pokemon have been chosen. We also know that there were three other trainers because of the samurai episode, in the Viridian Forest. So, who do you believe might have gotten the Bulbasaur, and Charmander?

Well, I think Richie might have started out with Charmander/Zippo. Does it ever state where he was from? I don't really know who could have gotten Bulbasaur, but perhaps a character made an appearance in an episode that I didn't see, with Bulbasaur. >.>; Care to post who you think?