Antique Doorknob Collectors of America
Conventions
ADCA has held an annual convention every year since 1981 — bringing collectors together to share, learn, and celebrate antique hardware.
2026 ADCA Convention
Location
Philadelphia, PA
Embassy Suites by Hilton Philadelphia Airport
Dates
August 6–August 8, 2026
Previous Conventions
ADCA has held annual conventions since 1981. Click the booklet or "View original page" link to download the program or view detail pages.
2019 ADCA Convention
North Little Rock, Arkansas
2018 ADCA Convention
Princeton, New Jersey
2017 ADCA Convention
Indianapolis, Indiana
2016 ADCA Convention
Boston, Massachusetts
2015 ADCA Convention
Monrovia, California
2014 ADCA Convention
Austin, Texas
2013 ADCA Convention
Pittsburgh, Pennsylvania
2012 ADCA Convention
Buffalo, New York
2011 ADCA Convention
Portland, Oregon
2010 ADCA Convention
Baltimore, Maryland
2009 ADCA Convention
Hartford, Connecticut
2008 ADCA Convention
Lisle, Illinois
2007 ADCA Convention
Portland, Oregon
2006 ADCA Convention
Buffalo, New York
2005 ADCA Convention
Charleston, South Carolina
2004 ADCA Convention
San Francisco, California
2003 ADCA Convention
San Antonio, Texas
2002 ADCA Convention
Saint Louis, Missouri
2001 ADCA Convention
Bethlehem, Pennsylvania
2000 ADCA Convention
Minneapolis, Minnesota
1999 ADCA Convention
Portland, Oregon
1998 ADCA Convention
Winnipeg, Alberta
1997 ADCA Convention
Philadelphia, Pennsylvania
1996 ADCA Convention
Grand Rapids, Michigan
1995 ADCA Convention
Santa Monica, California
1994 ADCA Convention
Milwaukee, Wisconsin
1993 ADCA Convention
Gaithersburg, Maryland
1992 ADCA Convention
Elgin, Illinois
1991 ADCA Convention
South Lake Tahoe, Calif.
1990 ADCA Convention
East Windsor, Connecticut
1989 ADCA Convention
Iowa City, Iowa
1988 ADCA Convention
Indianapolis, Indiana
1987 ADCA Convention
West Des Moines, Iowa
1986 ADCA Convention
Minneapolis, Minnesota
1985 ADCA Convention
Saint Louis, Missouri
1984 ADCA Convention
Waverly, Iowa
1983 ADCA Convention
Naperville, Illinois
1982 ADCA Convention
San Francisco, California
1981 ADCA Convention
Waverly, Iowa