“this biography of the self-made millionaire details Allison’s role in the Indianapolis 500 as well as his machine shop’s construction of the first mass-produced aircraft engine and production of other aircraft milestones during both World Wars”—Reference & Research Book News; “Having been the motorsports editor of a national automotive magazine and before that the auto racing reporter for a significant Midwestesrn newspaper, I thought I knew a lot about the early history of the Indianapolis Motor Speedway.... But now that I’ve read Sigur E. Whitaker’s biography of her great aunt’s husband, one of the Speedway’s co-founders, I’ve discovered some huge holes in my knowledge, holes delightfully filled by Whitaker’s well-researched work”—izoom.com.