Lexington-based breeder Debby Oxley has carefully curated the family behind Risen Star Stakes (G2) winner Sierra Leone and will be looking toward the first Saturday in May with the Kentucky Derby (G1) hopeful. The pedigree goes back to the second dam, Darling My Darling, whom Oxley’s husband, John, purchased for $300,000 during the 1998 Keeneland September Yearling Sale.