Dave Penna
David Penna ( January 11 , 1958 – January 13 , 2004 ) was an American jockey in thoroughbred horse racing who competed in the United States but had his greatest successes in Canada . 
<triplet> jockey <subj> thoroughbred horse racing <obj> field of this occupation <triplet> thoroughbred horse racing <subj> jockey <obj> practiced by