There was far less enthusiasm for erecting war memorials at the end of WW2, than after WW1 - people just wanted to get on with their lives and were still subjected to lack of housing, shortage of fuel, austerity measures and food rationing, Some local authorities did create WW2 memorials but these rarely included the names of their civilians who were killed. The emergency services were quite diligent and there are a number of fire and police memorials within Greater Manchester. The Borough of Stretford produced a Roll of Honour Book in which almost all of its civilians were commemorated in addition to its lost service personnel.
The few Greater Manchester memorials containing the names of civilians are listed below - the links take you to their details and photographs. If you know of any others, then please let me know.