Anyone know if Mikulski means something different than Murkowski? Sounds like a difference in regional dialects and nothing more ~ we need a slavic language specialist on the scene to translate these names.
Both Mikulski and Murkowski are Polish origin of course.
I believe Mikulski is based on "Mikula", which is a regional pronunciation of "Nicholas". It is possible that Murkowski is based on the word "murka", meaning a cat. Either that, or there is a small village Murkowo somewhere. Bur the names are definitely from different sources.