Colin Hamilton Livingstone was born on June 3, 1863 or 1864, in Saint John, New Brunswick.

He was an American banker and railroad executive. He attended McGill University (B.A., 1886). He was president of the Great Falls and Old Dominion Railroad, reorganized into the Washington and Old Dominion Railroad in 1911. He also served as a vice-president of the American National Bank, president of the Virginia Shipbuilding Corporation in Alexandria, and Washington and Virginia Real Estate Company. He was an organizer of the Boy Scouts of America in 1910 and president of its national council for 15 years. Livingstone served as a secretary to Senator Stephen Benton Elkins of West Virginia as well as the secretary of the Interstate Commerce Committee of the U.S. Senate.

In 1889, he married Anna Louise van de Boe (1865–1937). He died on February 1, 1943, in Fishersville, Virginia.

Born in Sault Ste-Marie, Michigan, of English parents, Nora Livingston moved to Como, Québec when she was a child. She went back to the United States to study nursing and graduated from the New York Hospital's Training School for Nurses. In 1890, she became the Lady Superintendent of the Montreal General Hospital and was the founder and director of the hospital's training school for nurses. Due to illness, she resigned from her position in 1919.

George A. Livingston was born in Montréal in 1825, and attended courses in the Faculty of Medicine from 1852 to 1855.

D. Livingston was a land surveyor who lived in Hinchinbrooke, Quebec.