List of mayors of Shawinigan

#
Mayor
Taking Office
Leaving
1
Vivian Burrill
1901
1902
2
Arthur Dufresne
1902
1902
3
Beaudry Leman
1902
1908
1
Vivian Burrill
1908
1913
4
Joseph-Auguste Frigon
1913
1915
5
Edmond Thibaudeau
1915
1917
4
Joseph-Auguste Frigon
1917
1918
6
Napoléon Désaulniers
1918
1920
7
Joseph-Alexis Dufresne
1920
1928
6
Napoléon Désaulniers
1928
1930
8
Albert Gigaire
1930
1936
9
Lucien Bourassa
1936
1937
10
Alexandre Gélinas
1937
1938
11
J.A. Bilodeau
1938
1946
12
François Roy
1946
1954
13
Gaston Hardy
1954
1957
14
Armand Foucher
1957
1963
15
Gérard Dufresne
1963
1966
16
Maurice Bruneau
1966
1970
17
Dominique Grenier
1970
1986
18
Roland Désaulniers
1986
1994
19
Lise Landry
1994
2009
20
Michel Angers
2009
Current

Question: For which terms did Napoléon Désaulniers serve as the mayor for Shawinigan?
Answer: Napoléon Désaulniers was the mayor of the Shawinigan from 1918 to 1920 and 1928 to 1930.