George Barnett was born in Saskatoon in 1915. He entered medical school at the University of Manitoba in 1938. He spent a year out of university while being treated for pleurisy at the Fort San Sanatorium, but recovered and graduated in 1944. After graduation he served in the armed forces. In 1946, Dr. Ferguson obtained Dr. Barnett's early release from the armed forces (RCAMC) and he joined SATL as a medical doctor. In 1957 Dr. Barnett was appointed as Dr. Orr's assistant, and succeeded him as General Superintendent on December 15th, 1957. He retired in 1982. He received a Commemorative Medal for the 125th Anniversary of the Confederation of Canada, presented by the Governor General.

Dr. Ferguson graduated from the Manitoba Medical School in 1916, while in medical school he interned under Dr. Steward a the Ninette Sanatorium. Dr. Ferguson was appointed Medical Superintendent of the Fort San Sanatorium in 1917 and retired from the League in 1948. During this time he resided at Fort San with his wife Helen and their 7 children.

The "Great White Plague" was the name used to describe tuberculosis. To fight the highly contagious disease the Saskatchewan Anti-Tuberculosis League was formed in 1911. Under its auspices Fort Qu'Appelle Sanatorium, was opened in 1917 to provide rest and fresh air. But the cure was long and tedious; few could afford to remain until they were healed. So in 1929, through the League's urging, Saskatchewan was the first province to make the care and treatment of tuberculosis free of charge. In 1987, with the closure of the sanatoriums, the League is reorganized into the Saskatchewan Lung Association.