1900 Census
Ferguson        Samuel           58  Male    Il      IA      Emmet Armstrong Grove Twp
Fergerson       John             56  Male    Oh      IA      Emmet Iowa Lake
1910 Census
Ferguson        Sara             22  Female  Ia      IA      Emmet Denmark Twp
1920 Census
Farguson        Claude           27  Male    Ia      IA      Emmet 2-Wd; Estherville
Ferguson        William E        26  Male    Ia      IA      Emmet Twelve Mile Lake