1900 Census
Ferguson        Richard          33  Male    Mi      MI      Presque Isle Allis Twp
Ferguson        Charles          40  Male    Cana    MI      Presque Isle Bearinger Twp
1910 Census
Ferguson        Richard          42  Male    Mi      MI      Presque Isle 2-Wd Onaway
Ferguson        William H        58  Male    Cana    MI      Presque Isle Case Twp
Ferguson        William Jr       24  Male    Mi      MI      Presque Isle Case Twp
Fergusson       Richard          43  Male    Mi      MI      Presque Isle North Allis Twp
1920 Census
Ferguson        Clayton          28  Male    Mi      MI      Presque Isle 2-Wd Onaway