The following is a list of the Grand Knights of the Marion Knights of Columbus from charter to date:
| Heze McCuan | 1970-1971 | Daniel Stricker | 1993-1995 |
| Charles Antonacci | 1971-1972 | William Heidbreder | 1995-1997 |
| Donald Bragee | 1972-1973 | Richard Fuggiti | 1997-1999 |
| John Liedtke | 1973-1974 | James Adams | 1999-2001 |
| Lowell Mohr | 1975-1975 | Erik Luckett | 2001-2003 |
| James Nall | 1975-1976 | Charles Roper | 2003-2004 |
| Robert Steffl | 1976-1978 | Steve Dingrando | 2004-2006 |
| Roger Hines | 1979-1980 | Randy Barton | 2006-2008 |
| Michael Amaroso | 1980-1981 | Chuck Ehrhardt | 2008-2010 |
| Roger White | 1981-1982 | William Hess | 2010-2012 |
| Clarke Deacon | 1982-1983 | Richard Heckel | 2012- |
| Harrel Lerch | 1983-1985 | ||
| John Dingrando | 1985-1986 | ||
| Rudy Depyatic | 1986-1987 | ||
| Frank Grabowski | 1987-1989 | ||
| Charles Bernardoni | 1989-1990 | ||
| David Haas | 1990-1991 | ||
| Robert Musgrave | 1991-1993 |
(Extracted from the original Marion Knights of Columbus charter)