Cornelius Weygandt (1939). General Magazine and Historical Chronicle Vol XLI Numb 2 January 1939. University of Pennsylvania. pp. 346–. Retrieved 7 May 2013. Quote: "I have had letters from Denver and from Pasadena about oyster crackers those oyster crackers some of us called water crackers some of us Philadelphia crackers some of us Trenton crackers Both of these men said they had oyster stew once a week the Denver man on Saturday night the Pasadena man on an unspecified day The one sent to Philadelphia for the crackers the other insisted on Exton crackers"
