Throughout the 1940s and 1950s, acclaimed horse trainer and show rider Martha Crawford Cantarini was among the busiest of Hollywood's elite corps of female stunt riders. She was the regular stunt double for such actresses as Eleanor Parker, Anne Baxter and Shirley MacLaine, appearing in films ranging from Elvis Presley's debut feature Love Me Tender to the epic Western The Big Country. Martha also hosted a Las Vegas television program...