This is the story of the unsung heroes of the Indianapolis 500; men who drove relief for the winning car. Setting aside co-winners Mauri Rose (1941) and Joe Boyer (1924), four men contributed to Indy 500 victory in relative anonymity. Most interesting of these was perhaps Howdy Wilcox, who won the race for himself in 1919.
Barney Oldfield gave an interesting interview in 1910. The writer focused on the spectacular: accidents and speed. There were some factual issues with the piece, especially reporting that Oldfield retired for three years beginning in 1906.