Willis Carrier
Willis Haviland Carrier (November 26, 1876 – October 7, 1950) was an American engineer, best known for inventing modern air conditioning. Carrier invented the first electrical air conditioning unit in 1902. In 1915, he founded Carrier Corporation, a company specializing in the manufacture and distribution of heating, ventilation, and air conditioning (HVAC) systems.
Charles Gilbert Gates
Charles Gilbert Gates was the son of John Warne Gates, the pioneer manufacturer of barbed wire. In July 1913 he drove from his home in Minneapolis to New York City, where he had a seat on the New York Stock Exchange. He died in Cody, Wyoming in 1913. After his death his home was completed and was the first to have air conditioning installed.