1975-1976 H.E. Prof. Sir Anthony Mamo (deceased)
1976-1981 H.E. Anton Buttigieg (deceased)
1982-1987 H.E. Agatha Barbara (deceased)
1989-1990 H.E. Dr Vincent Tabone

Heads of the Xirka and of the Order (1990 to date)

1990-1994 H.E. Dr Vincent Tabone
1994-1999 H.E. Dr Ugo Mifsud Bonnici
1999-2004 H.E. Prof Guido de Marco
2004-         H.E. Dr Edward Fenech Adami

Chancellors of the Xirka and of the Order (1990 to date)

1990-1991 Mr George Borg
1991-1995 Mr Joseph R Grima
1995-1996 Mr Alfred Fiorini Lowell
1996-1998 Mr Joseph Zammit
1998-2003 Mr Alfred Fiorini Lowell
2003-2005 Mr Joseph Scicluna
2006-         Dr Godwin Grima

Secretaries of the Xirka Ġieħ ir-Repubblika (1975-1990)

1975-1978 Mr John Bonello (deceased)
1978-1982 Mr Saviour Demarco
1982-1989 Mr John P Lanzon
1989-1990 Mr Richard J Azzopardi

Registrars of the Xirka and of the Order (1990 to date)

1990-1996 Colonel Rupert Montanaro
1996-1998 Colonel Carmel Vassallo
1998-1998 Colonel Anthony Grech (Acting Registrar)
1999-2004 Colonel Carmel Vassallo
2004-2007 Colonel Anthony Grech
2007-2008 Colonel David Mifsud (Acting Registrar)
2008-         Colonel Martin Xuereb