H.T. Clothier had a long and successful career coaching Tennis in southeastern Arizona at Duncan High School. In a career that spanned over 30 years, Coach Clothier's Duncan Wildkats managed to stack more state titles than any other school in this sport. Coach Clothier's players won State Titles in 1937,44,45,46,47, 56, 57, 60, 62, 68, 70, 73, and 1974 for a grand total of 13 titles. The Wildkats managed to earn another 8 State Runners-Up during the same period, for a whopping 21 appearances in the finals of the state tennis tournament.