| 1900: Fourth Degree added to the original three degrees. |
| 1900 - 1909: No Supreme Master Existed |
| 1910 - 1940: John H. Reddin |
| 1941 - 1945: Timothy P. Galvin |
| 1945 - 1965: William J. Mulligan |
| 1966 - 1967: Virgil C. Dechant |
| 1967 - 1970: Frank C. McGillen |
| 1970 - 1983: Daniel L. McCormack |
| 1983 - 1987: Alfred N. Nicolas |
| 1987 - 1991: Hilary F. Schmittzehe |
| 1991 - 1996: Darrell W. Beck |
| 1996 - 2000: Charles H. Foos |
| 2000 - 2004: Nestor Barber |
| 2004 - Present: Joseph Schultz |
