In the churchbooks in Alsters parish for the year 1723 it is written that Gunilla was born in the year of 1644 at the farm Långenäs in Alsters parish, Värmlands county. Her parents were the farmer Jon Månsson and his wife Dagny Olofsdotter.
As also written, "after permittance from her parents and advices from fiends, got married", she got married at an age of 25, on May 24 1669, to Nils Nilsson from Bjurerud. After the wedding she moved to her husband at Bjurerud. Gunilla and Nils had seven children together, two sons and five girls. The names of the girls are not yet known.
After the death of her husband in 1709, she stayed at Bjurerud, now with her son Nils and his family.
She lived there for 14 more years, until January 21 1723, when she died at an age of 79. In the churchbooks it is written that four of the children, three girls and her son Olof, already had died. It is also written that she in the end "had a very sick body".
Totaly she had seven children, two sons and five girls. The names of the girls are not yet known.