Working with microfilms of Nor-Am newspapers?

Hi, Has anyone had success finding what they were looking for in historic Norwegian-American newspapers? From the "Norwegians in New York" book I found out the name of the businessman who acquired the Brooklyn bookstore from my ancestor Iver F. Iverson. An additional search through all English-language papers for that year (1899) reveals absolutely nothing. There is no mention of Iver closing the business, or of the new gentlemen taking over at that address. My "last hope" is the newspaper Nordiske Blade, published in Brooklyn. Interestingly, its publication address in 1900 is the exact same address where Iver's store was last located in 1899! Is there a likelihood that this paper would contain a mention of the business change? It's available on microfilm only from University of Wisconsin - Madison. A local librarian here told me she could probably borrow the film with a rather extensive effort. I don't want to put her through that if this will be another wild goose chase. I know that Iver was back in Chicago by September, so I'd be searching through 9 months of weekly papers. Do these newspapers have a lot of Norwegian-American local news, or did they focus primarily on Norwegian news?