Address to the Nation on VietnamWar, 3 Nov. 1969. The term silent majority is found as early as 1870, when the Economist (19 Nov.) referred to "the silent majority which so seldom appears at the polls." See Petronius 2; Edward Young 1
Polk, James K. (1910). “The diary of James K. Polk during his presidency, 1845 to 1849, now first printed from the original manuscript in the collections of the Chicago historical society; Volume 4”, p.331, Best Books on
United States. President (1974-1977 : Ford), Gerald R. Ford (1975). “Gerald R. Ford: Containing the Public Messages, Speeches, and Statements of the President”
United States. President (1974-1977 : Ford), Gerald R. Ford (1979). “Gerald R. Ford: Containing the Public Messages, Speeches, and Statements of the President”
Theodore Roosevelt's address to the nation (March 4, 1905), as quoted in "Ten Memorable Inaugural Addresses", www.realclearpolitics.com. January 16, 2013.