The CSHM/SCHM annually invites a noted historian of medicine to present a lecture on her/his area of expertise. The lecture series originally was named after Dr. Hannah, the founder of Associated Medical Services Inc. and the Hannah Institute for the History of Medicine. In 1987, the Board of AMS decided to rename the lectureship in honour of Dr. Paterson, the founding executive director of the Hannah Institute, on the occasion of his retirement from the position.

(* published in CBMH)

• 1987 John Parascandola*
• 1988 Guenter B. Risse
• 1989 Jean-Noël Biraben*
• 1990 Judith Walzer Leavitt
• 1991 John Harley Warner
• 1992 Jackie Pigeaud*
• 1993 Philip Teigen
• 1994 Susan Cayleff
• 1995 François Delaporte
• 1996 Barbara Rosenkrantz
• 1997 Gerald Geison
• 1998 Susan Reverby
• 1999 Charles G. Roland*
• 2000 Andrew R. Cunningham
• 2001 Anne-Marie Moulin
• 2002 Bert Hansen
• 2003 Harold Cook
• 2004 Christopher Hamlin
• 2005 Ruth Schwartz Cowan
• 2006 Gregg Mitman
• 2007 Heinrich von Staden
• 2008 Charlotte Furth
• 2009 Angus McLaren
• 2010 Jacques Bernier