Forty Niner (Mr. Prospector--File, by Tom Rolfe), a four-time Grade I winner and champion of his generation in 1987 before becoming a sire of considerable importance, passed away Monday, May 18, in Japan due to the infirmities of old age. He had just celebrated his 35th birthday May 11. Owned and bred by Claiborne Farm and trained by Woody Stephens, Forty Niner won the 1987 GI Futurity S. and GI Champagne S. to clinch a divisional championship. A leading sophomore of 1988, Forty Niner missed by a neck to Winning...