List of municipal commissioners for finance of Stockholm
Mayors from 1920 till now

Name
Name
Term
Political Party
-
Carl Juhlin-Dannfelt
1920–1926
The Rightist Party
-
Gustaf Söderlund
1926–1931
The Rightist Party
-
Knut G. Ewerlöf
1931–1936
The Rightist Party
-
Halvar Sundberg
1936–1940
The Rightist Party
-
Zeth Höglund
1940–1950
Social Democrats
-
John Bergvall
1950–1954
Social Democrats
-
Erik Huss
1954–1958
Liberal People's Party
-
Hjalmar Mehr
1958–1966
Social Democrats
-
Per-Olof Hansson
1966–1970
Liberal People's Party
-
Albert Aronsson
1971–1973
Social Democrats
-
John-Olof Persson
1973–1976
Social Democrats
-
Ulf Adelsohn
1976–1979
Moderate Party
-
John-Olof Persson
1979–1986
Social Democrats
-
Sture Palmgren
1986–1988
Moderate Party
-
Mats Hulth
1988–1991
Social Democrats
-
Carl Cederschiöld
1991–1994
Moderate Party
-
Mats Hulth
1994–1998
Social Democrats
-
Carl Cederschiöld
1998–2002
Moderate Party
-
Annika Billström
2002–2006
Social Democrats
-
Kristina Axén Olin
2006–2008
Moderate Party
-
Sten Nordin
2008–2014
Moderate Party
-
Karin Wanngård
2014–2018
Social Democrats
-
Anna König Jerlmyr
2018–
Moderate Party

Question: Who was a member of the Social Democratic Party and Mayor of Stockholm from 1973-1976 and from 1979-1986?
Answer: John-Olof Persson was a member of the Social Democratic Party and Mayor of Stockholm from 1973-1976 and from 1979-1986.