The opening page shows Gene on top of a ridge, looking down at a bunch of bad guys attacking a wagon. Gene rides down, guns blazing, and scatters the outlaws. Not only does this get the story off to a fast start, it also establishes the character of the hero. He's brave, capable, and on the side of the underdog.
Page two actually gets the plot running as Gene rides down to see the folks he rescued. We learn a bit more about Gene. He knows field medicine and is cool in a bad situation. And the rest of the cast is introduced in a natural way.
And with page three, the other main characters of the story tell Gene who they are and what they're doing out in the wild. It doesn't feel so much like exposition because they're not telling the reader, they're telling Gene. Now we have the necessary info for the plot and Gene's already involved. That's what I mean by starting in the middle of someone Else's story. The story ultimately isn't about gene Autry, but about the people he's trying to help. So if you're having trouble getting a story off to a quick start, remember how Gaylord Dubois did it. Works for me, anyway.