Hans Raid
1917 - 1918
Josef Reichmuth
1920 - 1930
Marianne Ruosch-Hafner
1931 - 1943
Leo Steinmann
1946 - 1951
Hans-Rudolf Basler
1952 - 1955
Josef Garovi
1956 - 1958
Gabriel Tenud
1958
Joseph Baruchet
1958 - 1961
Pierre Chatton
1962
Eugen Meier
1963 - 1999
Johannes Diederen
1999
