It couldn't have been anyone else but Gwen.
5 seconds sound clip from the Consequence (1949) classic radio play.
You can hear this line at 00:18:30 in the radio play.
Quote context
[...]
- Then we went on up the mountain, but that time it was almost dark...
- Joe fixed something to eat, but neither of us could touch it.
- We were watching the road for light of a car...
- It was about half past eight when we saw them
- And they went on past the store without stopping and came on up the mountain.
- It couldn't have been anyone else but Gwen.
- Well?
- Well, she didn't waste any time.
- No, she'd bring her own... she loves to drive.
- Phil you're not afraid, are you?
- No. No not anymore. I'll go.
[...]