Regarding Olof Matsson Malmberg of Järnboås's ancestral line, I believe that the information on his mother is entirely wrong. In the records it is noted that his father is Mats Olofsson and his mother Margreta Andersdotter. However, I have done extensive research on the ancestral line of Olof's mother and it is Margeta Andersdotter. Her parents were Anders Olofsson and Margreta Hansdotter, both of Nora town and I can even go back further again. My references are mainly the Nora domböcker and this also gives a lot of information about the siblings too. If further information and references are required I can submit these!