| Thomas, Alfred Delavan (1890-1896) |
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Amidon, Charles Fremont (1896-1937) |
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| Miller, Andrew (1922-1960) |
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Vogel, Charles Joseph (1941-1954) |
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| Davies, Ronald Norwood (1955-1972) |
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Register, George S. (1955-1972) |
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| Van Sickle, Bruce Marion (1971-2007) |
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Benson, Paul (1971-2004) |
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| Conmy, Patrick Anthony (1985-Present) |
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Webb, Rodney Scott (1987-2009) |
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| Hovland, Daniel L. (2002-Present) |
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Erickson, Ralph R. (2003-2017) |
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Traynor, Daniel Mack |
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Welte, Peter David |
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