He was the founder and chairman of The Duchossois Group, Inc., a family-owned company headquartered in Elmhurst, Illinois that had ownership stakes in Arlington Park and Churchill Downs race tracks, and did rail car and defense manufacturing.
[4] He served in five European campaigns, including Normandy where he was a commander with the 610th Tank Destroyer Battalion of the United States Army.
[5][6] He served as the military governor for the region of Eichstätt and attained the rank of Major before he was released from active service in 1946.
[6] Richard Duchossois joined Thrall Car Manufacturing Company after World War II and became CEO in 1952.
That same year, Duchossois was voted into the National Museum of Racing and Hall of Fame as one of its esteemed Pillars of the Turf.