Identification of unknown Jensen family from Sarpsborg, Norway who emigrated to the USA.

Does anyone have information about Marius and niece of aunt Bjørnstad - Bjørnstad is a surname - on photo no.1 and

no.2 - 4.?

Found in Carl Borg's (Jensen) photo archive.Carl (Minneapolis), was nephew to Sever Bjørnstad.

Please send me a few words under "Contact PK."