NCHA money-earner, COA, NCHA Earnings: $7,850. Sire of: Working Cow Horse Money-earners AQHA OFFSPRING RECORD FOR DOC O CHEX: Reg Foals: 85; Number Shown: 14 OUTSTANDING OFFSPRING FOR DOC O CHEX: Hav A Smoke Doc, LTE WCH-$2,170 Donated to Cal Poly in 1987.