Jim Jackson, an owner and breeder who raced stakes winners Valhol, Allen’s Oop and Yessirgeneralsir, died Saturday at his home in Rockdale, Texas. He was 57. Jackson died suddenly, according to an obituary from Phillips and Luckey Funeral Home in Rockdale, where services will be held at 2 p.m. on Tuesday, Jan. 11. Burial will be Thursday at Oakwood Cemetery in Whitesboro, Texas. Valhol won the 1999 Arkansas Derby as a maiden and was later disqualified when his rider, Billy Patin, was found to have carried an electrical device. Valhol went on to become one of the better handicap horses in the Louisiana-Texas region and retired in 2003 with earnings of $444,850. Allen’s Oop won the Grade 3 New Orleans Handicap in 2000, while Yessirgeneralsir, a homebred, took the Grade 3, $300,000 Lone Star Park Handicap in 2004. Jackson also operated Valhalla Farm, a training center in Rockdale. He is survived by his wife, Janelle, and several children. A visitation will be held on Monday, beginning at 5 p.m. at Phillips and Luckey.