1910 Census
Ferguson        Howard           32  Male    Pa      WA      Grant Hartline Pct
Ferguson        Nancy A          47  Female  In      WA      Grant Hartline Pct
Ferguson        D M              26  Male    In      WA      Grant Low Gap Pct
Ferguson        George W         34  Male    In      WA      Grant Low Gap Pct
Ferguson        Courtney         47  Male    Pa      WA      Grant Steamboat Rock Pct
Ferguson        Harriet W        49  Female  In      WA      Grant Wilson Crk Pct
1920 Census
Ferguson        Ethel            26  Female  Mi      WA      Grant Soap Lake
Ferguson        Courtney Y L     57  Male    Pa      WA      Grant Steamboat Rock