Grenville Kleiser American writer Grenville Kleiser (1868–1955) lived in North America. He was the author of a sizable number of motivational publications and manuals for public speaking and personal growth. Additionally, Kleiser taught public speaking at Yale Diviity School, part of Yale University. In the year 1868, Kleiser was born in Toronto, Ontario, Canada. In 1894, he wed Elizabeth Thompson. On August 27, 1953, he passed away in New York City. Read More Read Less