Jack Brockie of Hanover-Horton High School earned medalist honors with a 37 at the first Cascades Conference jamboree at Lakeland Hills Golf Course.   By Jeff Steers JTV Sports   Brockies and Spinks. The two families – sometimes forged into one – have carried the Hanover-Horton High School boys’ golf program the last decade. That came to a culmination last year when the Comets won the Michigan High School Athletic Association Division 3 state title in a classic battle with Big Rapids. The Comets will hope to defend that state title beginning in May and June, but they will be…