Five Years after graduating from Pittsburg High School, in Pittsburg, Kansas, Thomas McNally assumed control of the family boiler making business upon the death of his father in 1906. Though perseverance, progressive thinking, and hard work, McNally turned the small family business into one of the world's leading fabricators of coal processing equipment, McNally Pittsburg Manufacturing Corp.
McNally served as President of the company until 1955.
Born in Marquette, Michigan, in 1882, McNally moved to Pittsburg, Kansas, at the age of seven. He was known for his active interest in both civic affairs and in business beyond his own field. He served as a trustee of the Menninger Foundation in Topeka and Rockhurst College in Kansas City. He was a member of the industrial advisory board of the Federal Reserve Bank of Kansas City, as well as a director of the Kansas Gas and Electric Co. of Wichita, the National Bank of Pittsburg, and the Kansas City Southern Railway.