Wrangham was a paramedic with the Las Vegas Fire Department from 1980 to 1997.

Southard worked as Yerington, Nevada's only paid firefighter starting in 1961. He was also a member of the Professional Rescue Instructors of Nevada.

Stangle was a member of the Douglas Volunteer Fire Department from 1972 to 1996. He started driving the department's ambulance in 1972, and took EMT training throughout the 1970s.

Swinney served on the fire department faculty at Texas A&M from 1976 to 1978. He became a certified EMT in Nevada and trained with Professional Rescue Instructors of Nevada. He was coordinator of EMS in Nevada, owned an ambulance transfer service, and authored a program for emergency training.

Taylor took EMT basic classes at the University of Nevada in the early 1980s. He dropped out of college to pursue EMS work and has progressively increased his EMT credentials.

Tinney joined Mercy Ambulance in Las Vegas, Nevada in 1974. In 1976 he finished EMT training at Clark County Community College. In 1986 he finished an engineering degree and retired from EMS.

Sullivan is the director of the Eureka County volunteer ambulance service, a post he has held since 2006. A native of Reno, Nevada, Sullivan received EMT training and worked as an ambulance operator in Tonopah and Pahrump before arriving in his current job.