"Fred Ludwig Holle son of Christian William Holle was born in Milwaukee Wisconsin. His mother was Julie or Tonia Breen also from Milwaukee. He married Minnie Wikkerink and they moved to Baldwin Wisconsin ..."
There was an "F. L. Holle" in Milwaukee that left a biographical trail in local German papers. These range from lost livestock notices (1863); a letter held for him from Friedrichsstadt (1867); to death notices at the age of 82. The odd thing is that the name was always published the same the way: F. L. Holle. A Wilhelmine Holle also had multiple family death notices published in multiple German papers.
Funny enough, my Rauh relatives in Baldwin, Wis. published death notices for the patriarch of that family (Wolfgang) in the Milwaukee papers, although I don't know whether that is the situation here. (I'm not a Holle researcher)
"Milwaukee's German Newspapers; an index of death notices and related items" (1844-1950).
Gary Rebholz, compiler/editor
Indexing Milwaukee's German newspapers continuously since 2007 ...