The following list of Presidents was taken from the Harford Historical Bulletins and Past Presidents of the Society, Harford Historical Bulletin, No. 24, page 71, Fall 1985.:

• William Stump Forwood, M.D, 1885-1892*
• Rev. Edward A. Colburn, 1892-1904
• A. Finney Galbreath, 1905-1915
• John A. Robinson, 1938-1939
• Frank Hays Jacobs, 1951-1954
• Harry C. Scarff, 1955-1956
• Rev. George B. Scriven, 1956-1958
• C. Holden Rogers, 1958-1960
• George L. VanBibber, 1960-1962
• Rev. George B. Scriven, 1962-1963
• Inez Osborn, 1963-1964
• W. Paul Hicks II, 1964-1966
• C. Holden Rogers, 1966-1968
• James T. Wollon, Jr, 1968-1970
• Jon Harlan Livezey, 1970-1972
• Henry H. Boyer II, 1972-1974
• J. Edmund Bull, 1974-1976
• James T. Wollon, Jr., 1976-1980
• Andrew M. Bristow, 1980-1985
• John E. Brown, 1986-1987
• Duncan MacKenzie, 1988-1989
• Barclay E. Tucker, 1990-1991
• Patricia E. Hathaway, 1992-1995
• Marlene Magness, 1996-1997
• Jacquelyn Magness Seneschal, 1998-2001
• Rick Herbig, 2002-2005
• Joe Swisher, 2006-

* Dr. William Stump Forwood, M.D. (1830-1892) was founder of the Harford Medical Society and President and Trustee of the Darlington Academy as well as being the first President and a founding member of the Historical Society of Harford County, Inc. He studied medicine at the University of Pennsylvania and practiced in Darlington.