My great grandmother's maiden name was Laaker also. Her name was Anna and she married Henry Wisner in 1904, they lived in Fremont. Her siblings are- Herman Heinrich (Mike), Elizabeth, Minnie, Edward, Harry, and Casper. They grew up in Arlington. Their parents wer Herman Heinrich and Marie Bernadine(Mersman). I have a family tree with the other siblings back to my great great great grandparents-Johann Heinrich and Anne Marie Pottkamp. Let me know what you've found...