Ketcham, Ralph, 1927- (Personal Name)
- Ketcham, Ralph L., 1927-
- Ketcham, Ralph Louis, 1927-
The mind of James Madison, 1956.
Presidents above party, c1984: CIP t.p. (Ralph Ketcham) CIP data sheet (Ralph L. Ketcham)
LC database, Feb. 3, 2015 (hdg.: Ketcham, Ralph Louis, 1927-; usage: Ralph Ketcham; Ralph L. Ketcham)
Maxwell School, Feb. 3, 2016 (Ralph Ketcham; Professor Emeritus, History, Public Affairs, and Political Science; Maxwell Professor Emeritus of Citizenship and Public Affairs; Senior Research Associate, Campbell Public Affairs Institute) https://www.maxwell.syr.edu/psc/Ketcham,_Ralph/