No worries.... there is an Andrew JOHNSON on the 1911, born about 1870 and in Grimsby Linc. Also in the house is Elizabeth Agnes aged 41, George William aged 17, James Alfred aged 15, Agnes Clementine aged 2mths and William aged 43.CheersKarenlee
May be worth looking in Swedish censuses if available then, but I would guess his surname may have reverted once he went back, however you could perhaps have a search made on her Christian names and place of birth.