1860 Census
Fergason     William         52  Male    Irel   IN      Fulton Union Twp
Furgason     William M       20  Male    Oh     IN      Fulton Union Twp
1870 Census
Fergason     John            23  Male    In     IN      Fulton Liberty Twp
Furguson     James M         37  Male    Oh     IN      Fulton Rochester
Ferguson     William         60  Male    Irel   IN      Fulton Union Twp
1910 Census
Ferguson        Charles P        36  Male    Ks      IN      Fulton Rochester Twp