Names of the crew, no names of the deportees - you can see how the song would have shaped itself as he read that report.
"...Mexican nationals who entered the United States illegally, and others who stayed beyond duration of work contracts in California... All were agricultural workers."
"Some of us are illegal, and some are not wanted, Our work contract's out and we have to move on"
Nothing really changes does it? "Economic migrants" they'd call them today.