Robert S. McMillin, who bred and raised horses in partnership with family members in the name McMillin Brothers, died Oct. 13 in Lexington. The Scott County, Ky., native was 68.McMillin Brothers consisted of brothers Robert, Pat, and Bruce, and for a time, Robert's McMillin's son, Robert Lee. McMillin Brothers bred 18 stakes winners alone and in partnership. Two stakes winners were bred by Robert McMillin.The best of the group, Son of a Pistol was one of the West Coast's top sprinters starting 1998. Bred in partnership with James Devaney, Son of a Pistol won in succession the Potrero Grande Breeders' Handicap (gr. II) in track-record time, the Triple Bend Invitational Breeders' Cup Handicap (gr. II), and the Bing Crosby Breeders' Cup Handicap (gr. III) in 1998. He also was a graded winner in 1999 and 2000.The McMillins and Devaney also bred graded stakes winner Tower Full. Another of the horses the McMillins bred, Hassi's Image, made it to the 1972 Kentucky Derby, but ran unplaced.Robert McMillin, who played basketball at Western Kentucky University for legendary coach E.A. Diddle, was a member of the Kentucky Thoroughbred Farm Managers' Club and served on the Kentucky Agricultural Board.In addition to his son and two brothers, McMillin is survived by his wife, Mary, and a daughter, Anne.