Becky, I think the link below will work. If you go to it and type in the name FREDERICKS, search in the 1880 US census for the state of Nebraska you will find several FREDERICK families spelled various ways. One of the families is that of Theo. FREDERICKS formally of Prussia, living in Pierce County. This might be your family. If not one of the others maybe. Sounds like you're just getting started, so you have lots of fun to look forward to, plus some frustration. Good luck in your search. Remember that there's a lot of us out here who can and will help.
Theo. FREDERICKS - 1880 United States Census / NebraskaSelfGender: MaleBirth: <1815> PRUSS Kathrina FREDERICKS-WifeBirth: <1824> PRUSS William FREDERICKS-SonBirth: <1851> WI Fred FREDERICKS-OtherBirth: <1858> WI (living with another family) George F. FREDERICKS -SonBirth: <1859> WI Henrietta FREDERICKS -DauBirth: <1864> WI Bertha F. FREDERICKS-DauBirth: <1866> WI