1900 Census
Fergerson       Alex L           40  Male    Ia      IA      Audubon Leroy Twp
Furgeson        William P        49  Male    Il      IA      Audubon Leroy Twp
Ferguson        Charles E        38  Male    Ia      IA      Audubon Viola Twp
1910 Census
Ferguson        Wills            40  Male    Ia      IA      Audubon Audubon Twp
Ferguson        Abp              49  Male    Ia      IA      Audubon Leroy Twp
Fergueson       Charles E        47  Male    Ia      IA      Audubon Melville Twp
1920 Census
Fergueson       Charles          57  Male    Ia      IA      Audubon Leroy
Fergueson       Lewis            28  Male    Ia      IA      Audubon Leroy
Fergusen        Alek             59  Male    Ia      IA      Audubon Leroy