You can access Hailuoto library database through OUTI library database (in finnish).
Material that is not available in your own library can be borrowed as an interlibrary loan. Interloan fee is 2 euros. OUTI libraries of Oulu region and 11 nearby municipalities provide free regional reservations which are accessible also online with your own user code given by your library service desk.
The library houses also a collection of Hailuoto-related material, e.g. newspaper clippings, photos and local literature.