Roy Gravel was a researcher at the University of Calgary in the faculties of Medicine and Kinesiology in the Department of Biochemistry and Molecular Biology and cross-appointed in Medical Genetics. Prior to that, he served as scientific director of the McGill University-Montreal Children’s Hospital Research Institute and also woked at the Hospital for Sick Children in Toronto. Gravel served as the Director of the McGill Group in Medical Genetics from 1994 to 2001.

Rufus Graves was one of three initiators of a project to build the White River Falls Bridge over the Connecticut River in Hanover, New Hampshire.

Arthur Fairfield Gray was born on January 9, 1855, in Beverly, Massachusetts.

He was an American civil engineer, architect, and malacologist. He was trained as a civil engineer. In 1890, he established an architectural and engineering firm in Boston, Massachusetts, designing mill buildings, railway stations, and pumping stations. He also supplied illustrations for scientific works. Gray was a president of the Boston Malacological Club (1923–1927) and a member of the American Association of Conchologists.

In 1884, he married Mabel Stone (1863–1931). He died on November 1, 1944, in Watertown, Massachusetts.