A.W. Tillinghast headed west to design San Francisco GC. The par 3 7th at SFCG was built on the site of America's last legal duel in 1859! The "duel hole" was a Tillinghast favorite. #evolvegolf, #customstartshere, #makeyourmark, #sweetmrx, #ballmarker, #golfcourses,golfing,#golfisfun, #golfstagram, #instagolf, #whyilovethisgame, #sanfranciscogolfclub, #golfcoursearchitecture, #awtillignhast