Petillo with his riding mechanic Jimmy Dunham who happened to be a milk man making deliveries to where Petillo's car was being built. He had no racing experience but was given the job of riding mechanic anyway. He lived a long life and passed away at the age of 96. Here's some background on Dunham. https://www.motorsport.com/vintage/news/winning-indy-500-riding-mechanic-dunham-died/300158/
She smokes two packs of Marlboro Reds a day, switches to tall can Buds at night. Her favorite saying: "you can kiss my ass"