Tags: Race Horse.
Slide Rule (1940 – ) was a Thoroughbred race horse who was owned by William E. Boeing of Boeing. He sired by Metropolitan and Suburban Handicap winner Snark and was out of the mare King’s Idyll a daughter of the outstanding Champion sire and broodmare sire Sir Gallahad III.He was a stablemate of the morenoted Devil’s Thumb and in April 1943 of the colt Twoses. Newspaper reports of the early 1940s described him as a little chestnut colt.