Contra Costa County Historical Society Presidents
| President | Dates Served | Hometown |
| A. Frank Bray, Sr. | 1951-1980 | Martinez |
| Carol Leland | 1981-1982 | Orinda |
| Roy S. Bloss | 1983-1984 | Alamo |
| Andrew Young | 1985-1986 | Alamo |
| Betty Maffei | 1987-1988 | Walnut Creek |
| John Buffo | 1989-1990 | Antioch |
| Ruth Dyer | 1991-1992 | Lafayette |
| Beverly Clemson | 1993-1994 | Walnut Creek |
| A. Frank Bray, Jr. | 1995-1996 | Martinez |
| Mary-Ellen Jones | 1997-1998 | Orinda |
| Kathleen J. Mero | 1999-2000 | Concord |
| Lucille Irish | 2001-2002 | Walnut Creek |
| Denise Hueners | 2002-2003 | Concord |
| Traci Parent | 2004-2005 | Danville |
| Webb Johnson | 2006-2007 | Walnut Creek |
| Steve Lawton | 2008-2009 | Hercules |
| Beverly Lane | 2010 | Danville |
| Andrea Blachman | 2011 | Martinez |
| Beverly Lane | 2012 | Danville |
| John Burgh | 2013-2014 | Concord |
| Scott Saftler | 2015-2016 | Walnut Creek |
| John Mercurio | 2017-2018 | Concord |
| John Greitzer | 2019- | Martinez |