I got two reasons.
4 seconds sound clip from the The Big Trail (1930) movie soundboard.
You can hear this line at 01:21:26 in the Blu-ray version of the movie.
Quote context
[...]
- Ah, now, we're taking on a new scout.
- I started with this outfit, and I'll be with it at the finish.
- One is I told Wellmore I'd scout the train through.
- The other is a little personal business I aim to transact at the end of the trail.
- See if you can figure out what that is, Flack.
- Coleman, the settlers are willing to push on.
[...]