"Are you still searching for Felski in Milwaukee? My mother's family name was Felski."
There are about 60 combined Felski Felske Felsky entries or references found in "Milwaukee's German Newspapers; an index of death notices and related items" (1844-1950). Some other surnames connected to these spellings include: Brahm Siewert Bartz Torn Kukla Kien Pumplun Stein Ziemann.
Gary Rebholz, compiler/editor
Indexing Milwaukee's German newspapers continuously since 2007... helping family researchers find their ancestors among Milwaukee's 99%.
P.S. re: the original post - there are about 40 Jankowski/Jankowsky entries in the index, but no entries or variations of JARZEMBOWSKI, POLASZEWSKI.