1916 6 1 Indy 500 How the Sixth International Sweepstakes Was Run –And Won by William K. Gibbs article MOTOR AGE 8.25″×11.25″ page 10

1916 6 1 Indy 500 How the Sixth International Sweepstakes Was Run –And Won by William K. Gibbs article MOTOR AGE 8.25″×11.25″ page 11

1916 6 1 Indy 500 How the Sixth International Sweepstakes Was Run –And Won by William K. Gibbs article MOTOR AGE 8.25″×11.25″ page 12

1916 6 1 Indy 500 How the Sixth International Sweepstakes Was Run –And Won by William K. Gibbs article MOTOR AGE 8.25″×11.25″ page 13