I am trying to locate ancestors of (or anyone who might have further information about):

Charles DEMSKY (born ~1847) and his wife Louise UNKNOWN SURNAME (born ~1851).

Charles & Louise DEMSKY had a son named William DEMSKY (born 1878), and a daughter named Bertha A. DEMSKY (born ~1884 in Michigan).

Bertha A. DEMSKY married Herman A WEHRMEISTER (born May 1883 in Michigan), and they had two daughters, Dorothy WEHRMEISTER (born ~1918) and Florence WEHRMEISTER (born ~1919).

Herman WEHRMEISTER is the brother of my great-grandfather, and I'm trying to fill in the gaps on that side of my family tree.

I welcome any and all replies.
Katherine Willson