Is Pokémon Yellow Canon? What It Means For Red & Blue's Timeline

Pokémon Yellow is the canon first generation game and not Pokémon Red or Blue, as proven by events that happen in later entries in the series.

Red's Game-Canon team development (Part3) : r/pokemon

Game Plot Analysis – The Kanto Games

Pokémon Red, Blue, Yellow Version Variant Guide (Print Runs

Red's Game-Canon team development (Part3) : r/pokemon

Pokémon Red / Blue / Green / Yellow Virtual Console Transfer Guide

Confirmed blue and red pikmin gay and NOT yellow : r/Pikmin

Pokemon Starters: Who Is Red's Canon Starter Pokemon?

All Version Differences in Pokemon Red, Blue, Green & Yellow

Pokemon Theory: Pokemon Red, Blue, Yellow, and Green are NOT

Red's canon team throughout story by NdelGenesis on DeviantArt

Pokémon Red, Blue, Yellow Version Variant Guide (Print Runs