If you are referring to the 1943-1944 season it was:Volewijckers.
The Dutch League did not play in the 1944-1945 season.
The team that won the Dutch league in 1944 was De Volewijckers.
Feyenoord
Heracles
Twente
RCH
Feyenoord
Ajax
Ajax
Ajax
Feyenoord
Ajax
Feyenoord