Re: Town in Minsk #belarus
There are indeed couple of towns known as Minsk. One is the capital city of Belarus, and capital of Minsk Guberniya (Province). Second Minsk is known as Minsk Mazowiecki, seat of the local district. Town was known as Nowo-Minsk (Minsk Khadash) till the end of WWI.
Name of town "Sibishoff" within the Minsk administration division does not make too much sense there is not even close by sounding town name in Minsk or Pinsk vicinities.
In JGFF towns database there are 20 entries for Kolodner (Colodner) from the various locations.
Please pay special attention to the researcher Annette Katz since she is researching Colodner in London and Pinsk (Minsk Guberniya), both are coincide with your Kolodner reserch in Belarus and UK.