These sentences below is about is how the Entrepenuers are making money off of the gold miners. So, the sentences below are some part of a poem, which is:

I thought: What will stampeders need?
Now I’m a Dawson millionaire!
I sell them ALL long underwear.

So what do these sentences mean?

2 answers

My guess was right.

He's asking what the gold rush miners will need. He proclaims himself a millionaire in Dawson, near the gold mines.
But I still don't get it.can you explain with more details