AT&SF 1142:
This loco was built in */1961 with EMD serial number 26848. She was built as a freight roadswitcher, model GP20.
She became AT&SF 3142.
She was rebuilt as a GP20u in */19** and became AT&SF 3042.
She was wrecked at Alvarado, TX on 10/24/1984 and is presumed scrapped.