1900 Census
Farguson        Peter            ??  Male    Denm    SD      Brown 2-Wd Groton
1910 Census
Ferguson        Lester H         25  Male    Tx      SD      Brown 2-Wd Aberdeen
Ferguson        James            40  Male    Cana    SD      Brown 3-Wd Aberdeen
Ferguson        Edward H         33  Male    Ma      SD      Brown 4-Wd Aberdeen
Ferguson        George F         10  Male    Sd      SD      Brown 4-Wd Aberdeen
Ferguson        David            34  Male    Ia      SD      Brown Aberdeen
Ferguson        William H        40  Male    Wi      SD      Brown Bath
Ferguson        Bruce R          23  Male    Ny      SD      Brown Warner
1920 Census
Ferguson        Clermont R       27  Male    Oh      SD      Brown 4-Wd; Aberdeen
Ferguson        Harry E          44  Male    Wi      SD      Brown 4-Wd; Aberdeen
Forgerson       Cris             68  Male    Wi      SD      Brown Mercer