1900 Census
Ferguson        Herbert R        16  Male    Mn      MT      Flathead Flathead Twp
Ferguson        Archie           31  Male    Mn      MT      Flathead Kalispell
Ferguson        Emma F           28  Female  Ca      MT      Flathead Kalispell
Ferguson        Frederick        56  Male    Engl    MT      Flathead Kalispell
1910 Census
Ferguson        Grace            25  Female  ??      MT      Flathead Columbia Twp
Ferguson        Ray T            32  Male    Mt      MT      Flathead Jocko Twp
Ferguson        Charles C        52  Male    Cana    MT      Flathead Kalispell
Ferguson        Fredrick         67  Male    Engl    MT      Flathead Whitefish Twp
Ferguson        Grace O          29  Female  Ks      MT      Flathead Whitefish Twp
Ferguson        William P        40  Male    In      MT      Flathead Whitefish Twp
1920 Census
Fergusson       Calwell          43  Male    Cana    MT      Flathead 1-Wd; Kalispell
Ferguson        Frederick        76  Male    Engl    MT      Flathead 1-Wd; Whitefish
Ferguson        Sylvester        48  Male    Ia      MT      Flathead 3-Wd; Whitefish
Ferguson        William P        57  Male    In      MT      Flathead 3-Wd; Whitefish
Ferguson        Vick             43  Male    Mn      MT      Flathead Jocko