The family had been involved for several generations with the lucrative business of polo horses, and Horatio Luro grew up as something of a playboy and maintained this lifestyle after moving to the United States.
Well connected, he was friends with the social and business elite who could afford to be involved in the costly sport of thoroughbred racing.
Luro basked in the publicity surrounding his racing success, associating with the rich and famous including Hollywood stars such as Bing Crosby while his dashing personality and good looks saw him dating some of society's most glamorous women.
He subsequently developed a breeding and training facility on her family's land in Cartersville, Georgia, operating under the name "Old Mill Farm".
On Sunday, December 16, 1991, Luro died of pancreatic cancer at his home in Bal Harbour, Florida, at the age of 90.