"THE GRAPES OF WRATH"

Al knows all about engines, he has a talent for tinkering.

Tom opened the hood and looked at the big greasy engine. And Pa came up beside him. He said, "Your brother Al looked her over before we bought her. He says she's all right." "What's he know? He's just a squirt," said Tom. "He worked for a company. Drove truck last year. He knows quite a little. Smart aleck like he is. He knows. He can tinker an engine, Al can."

Al idolizes his older brother Tom.

Cockily, he walked close before he recognized Tom; and when he did, his boasting face changed, and admiration and veneration shone in his eyes, and his swagger fell away.