Education
Harvard University.
Harvard University.
His name has been assigned to a new magnetic mineral, greigite. discovered in 1964. Nine minerals have been named after him. Greig, received his Doctor of Philosophy from Harvard and then worked at the Carnegie Institute for thirty-eight years.
Once he retired in 1960 he became a visiting professor at Pennsylvania State University.
He also served in the first world war with the Canadian Expeditionary Force, and in the second with the United States Bomber Command in the Pacific Theatre.