When Peek was a young boy, he suffered from rheumatoid arthritis and had to be hospitalized for weeks away from the family home; his parents could only visit occasionally. Peek remembered this experience when, about a year before he died, he decided to dispose of five of his vintage guitars. Because the Ronald McDonald Houses exist to provide housing for families of hospitalized children close to hospitals around the United States and the world, Peek donated these five guitars to the San Diego house, which were subsequently sold to a collector, resulting in a $50,000 donation.