Source: 1920 Kansas City Times (October 20) H.J. Waters, "The Waste of Poor Sires"
Kansas City Star published as the Kansas City Times , October 20, 1920
Where was it found? Jeff Graf, Indiana University Librarian
What was found: "It is an old maxim in education that we remember 5 per cent of what we hear and 50 per cent of what we see."