 Su Mac Lad had a distinct lack of classical horseracing pedigree, having been born on a nondescript farm owned by Mrs. Paul Davis, a breeder in Henderson, Illinois.He was sold as a two-year-old for $750 and was purchased by Berkemeyer in 1959 for $35,000.In a six-horse field at the 1961 International Trot, Su Mac Lad, driven by Dancer, finished in a time of 2