Old Welding Shop of H. C. Nicol. (1892-1963) Expert with acetylene torch, Nicol is remembered as first welder operating in the Navarro County oil fields, which opened 1894. He began work about 1912, at a time when he had to mix own welding chemicals. In addition he pioneered welding of cast iron and aluminum in this area. Recorded Texas Historic Landmark - 1968 #7239