Hi, yes it is a lot of work for you to translate all the time. I wish I could write in Swedish. Thank you for doing that!
There's an Otto Johnson in Plymouth County, Massachusetts, in 1920. He is born about 1872. When is "your" Otto born? (You wrote "182-07-03") He has a wife Jennie.
About Caroline's emigration:
"I have found that she emigr. from Sweden in 1904 to Amerika."
I did not find this record yet. Can you tell us what it says? Does it say Carolina Nilsson, or Carol Nielson, or Caroline Nelson, or ... ??? Does it tell who is she going to see in the USA?
We can find a Caroline in the USA, but we don't know if she is the right one.
Where is Caroline from? Also from Skane?