1870 Census
Fergason     Henry           37  Male    Mi     IA      Butler Dayton Twp
Ferguson     William         46  Male    Engl   IA      Butler Monroe Twp
Ferguson     Eugene          21  Male    Il     IA      Butler Shell Rock Twp
Ferguson     Thomas          34  Male    In     IA      Butler Shell Rock Twp
1900 Census
Ferguson        J C              32  Male    Cana    IA      Butler Albion Twp
Fergason        James E          37  Male    Cana    IA      Butler Albion Twp
Ferguson        S R              55  Male    Tn      IA      Butler Albion Twp
Ferguson        Thomas           44  Male    Cana    IA      Butler Monroe Twp
1910 Census
Ferguson        Harry            18  Male    Ia      IA      Butler Albion Twp
Ferguson        James E          46  Male    Cana    IA      Butler Albion Twp
Ferguson        John C           50  Male    Cana    IA      Butler Albion Twp
1920 Census
Furgerson       Carl B           38  Male    Oh      IA      Butler Parkersburg; Albion
Furgerson       Thomas           64  Male    Cana    IA      Butler Parkersburg; Albion