My great-grandfather, Fred Stoelting was a blacksmith from southern Indiana who came of age in the late 19th Century. During his career, the invention of rubber threatened to disrupt the blacksmithing industry. But rather than panic, he pivoted his business from forging wagons and horseshoes from iron to repairing and re-tiring wagons with rubber.  “The good Lord took [iron] away and put rubber in its place,” he told a local newspaper in 1948. Soon after, Fred retired from the smithing shop,