Obie and Storsley does not mean anythig to us.
Surnames were only used in the big cities.
We used patronyms and farm names anyway and patronyms changed with every generation.
you can check emigrations at Digitalarkivet
"Emigranter fra Oslo 1867-1930", I found 264 Tollef there and one aged about 26 in 1885, Tollef Haagensen Sletten from Øvre Rendalen aged 26 and tollef Asbjørnsen from Laurdal aged 23.
Of course the american census ages might be a few years off.
I doubt there was anyone named obie .
There are other emigration lists too, over Bergen for that matter.
The T middle name (was it some census T, or a middle name?) often was the actual patronym in the norwegian census so it is important to mention it.
I see they were naturalized in 1889, are there any records of that, did they change their name then? Storsley is not norwegian either, just half. If you find their norwegian names, you can maybe find them crossing the atlantic, and from the norwegian names you can find where they came from.
They had to apply for american citizenship in order to get any land.
What do you mean with that you found their parents´names, what were their parents´names?
This board here is common for Rootsweb and for ancestry, and those who are in the ancestry website can see Tolllef and his wife and children in Cavalier in the 1920 census, but not the others...