| CONVENTION SITE | YEAR | OFFICE | OHIO LEADER | HOME CLUB |
| Oakland, CA | 1921 | 3rd VP | Dr. B.W. Beatty | Dayton |
| Miami, FL | 1927 | Director | Horrace Kerr | Columbus |
| Los Angeles, CA | 1932 | Director | John Lloyd | Cincinnati |
| Mexico City, Mexico | 1935 | Director | John Lloyd | Cincinnati |
| Oakland, CA | 1938 | Director | Henry Bowers | Toledo |
| PNONE | 1945 | Director | Guy Brentlinger | Lima |
| New York, NY | 1948 | Director | A.B. Dredge* | Springfield |
| Chicago, IL | 1953 | Director | Dr. Dan Martin* | Greenville |
| San Francisco, CA | 1957 | Director | W. R. Bryan | Doylestown |
| Chicago, IL | 1958 | Director | W. R. Bryan | Doylestown |
| New York, NY | 1959 | IPID | W. R. Bryan | Doylestown |
| Chicago, IL | 1960 | Director | Ralph Blaney | Old Fort |
| Atlantic City, NJ | 1961 | Director | Ralph Blaney | Old Fort |
| Nice, France | 1962 | IPID | Ralph Blaney | Old Fort |
| Miami Beach, FL | 1963 | Director | Homer Hoover | Wooster |
| Toronto, Canada | 1964 | Director | Homer Hoover | Wooster |
| Los Angeles, CA | 1965 | IPID | Homer Hoover | Wooster |
| New York, NY | 1966 | 3rd VP | W. R. Bryan | Doylestown |
| Chicago, IL | 1967 | 2nd VP | W. R. Bryan | Doylestown |
| Dallas, TX | 1968 | 1st VP | W. R. Bryan | Doylestown |
| Tokyo, Japan | 1969 | President | W. R. Bryan | Doylestown |
| Atlantic City, NJ | 1970 | IPIP | W. R. Bryan | Doylestown |
| Mexico City, Mexico | 1972 | Director | Merle Hartle | Piketon |
| Miami Beach, FL | 1973 | Director | Merle Hartle | Piketon |
| San Francisco, CA | 1974 | IPID | Merle Hartle | Piketon |
| New Orleans, LA | 1977 | Director | W. P. Leibensperger | Columbus |
| Tokyo, Japan | 1978 | Director | W. P. Leibensperger | Columbus |
| Montreal, Canada | 1979 | IPID | W. P. Leibensperger | Columbus |
| Chicago, IL | 1980 | Director | James T. Coffey | Toronto |
| Phoenix, AZ | 1981 | Director | James T. Coffey | Toronto |
| Atlanta, GA | 1982 | IPID | James T. Coffey | Toronto |
| New Orleans, LA | 1986 | Director | Daniel Cole | Marietta |
| Taipei, Taiwan | 1987 | Director | Daniel Cole | Marietta |
| Denver, CO | 1988 | IPID | Daniel Cole | Marietta |
| St. Louis, MO | 1990 | 3rd VP | James T. Coffey | Toronto |
| Brisbane, Australia | 1991 | 2nd VP | James T. Coffey | Toronto |
| Hong Kong | 1992 | 1st VP | James T. Coffey | Toronto |
| Minneapolis, MN | 1993 | President | James T. Coffey | Toronto |
| Phoenix, AZ | 1994 | IPIP | James T. Coffey | Toronto |
| Seoul, Korea | 1995 | Director | Floyd Newberry, Jr. | Mt. Orab |
| Montreal, Canada | 1996 | Director | Floyd Newberry, Jr. | Mt. Orab |
| Philadelphia, PA | 1997 | IPID | Floyd Newberry, Jr. | Mt. Orab |
| Denver, CO | 2003 | Director | Gary Brown | Urbana |
| Detroit, MI | 2004 | Director | Gary Brown | Urbana |
| Hong Kong | 2005 | IPID | Gary Brown | Urbana |
| Boston, MA | 2006 | Director | Steven Sherer | Dover |
| Chicago, IL | 2007 | Director | Steven Sherer | Dover |
| Bangkok, Thailand | 2008 | IPID | Steven Sherer | Dover |
| Minneapolis, MN | 2009 | Director | Jerry Smith | Wauseon |
| Sydney, Australia | 2010 | Director | Jerry Smith | Wauseon |
| Seattle, WA | 2011 | IPID | Jerry Smith | Wauseon |
| Las Vegas, NV | 2018 | Director | Stephen Thornton | Wooster |
| Milan, Italy | 2019 | Director | Stephen Thornton | Wooster |
| Singapore, Malaysia | 2020 | Director | Stephen Thornton | Wooster |
| Montreal, Canada | 2021 | IPID | Stephen Thornton | Wooster |
| Montreal, Canada | 2022 | Director | Ronald Keller | Millersport |
| Boston, MA | 2023 | Director | Ronald Keller | Millersport |
| Melbourne, Australia | 2024 | IPID | Ronald Keller | Millersport |
| *Defeated for 3rd VP | ||||
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