A farrier & a blacksmith are masters of very different crafts.
Starting with bar stock, a farrier was expected to shoe 8 work horses / day. Union farriers used pre manufactured shoes. This was a strategic advantage.
While Scotsman Henry Burden was a prolific inventor and industrialist who played a major role in the Civil War, his vital contributions are generally unknown. Many of his inventions helped the North, but the design and perfection of a horseshoe-making machine was his most important one. As a...
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A farrier's craft was far more than just sizing & nailing on shoes. They have a deep understanding of equine anatomy. A hoof has to be rasped down very carefully.
All manner of physical problems can be addressed or created by shoeing. Properly addressing the needs of individual horses & mules is the difference between a sound animal & one that can be permanently crippled.
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Granddaughter & master smith Ellen Durkan of Iron maiden Forge. , Rutherford County Blacksmith Association.
Blacksmiths work iron. Few, if any of them know anything about the farrier's craft.
Out in the country or frontier the local smithy was likely a hybrid operation. All manner of ironwork was routine. Either the master smith or one of his journeymen would have also been farriers.
Note: My blacksmithing mentor was also a farrier. He shod show horses & breeding stock worth hundreds of thousands. He made it crystal clear that farriers & blacksmithing crafts only have a very small overlap.