Birgitta Margreta Pehrsdotter was born May 27, 1831 in Önskan, Anundsjö, Västernorrland, Sweden to Pehr Pehrsson and Sigrid Ragvaldsdotter. She was the 2nd of 5 children. She had a younger sister named Sigrid Christina that died at age 6 months. Birgitta was eight years old at the time. She named her only daughter after her sister that died as an infant. On June 25, 1861 Birgitta (also known as Brita Greta) married Jonas Andersson. They had 3 children: Anders, born 10 Apr 1862 Sigrid Christina, born 21 Aug 1863 Pehr, born 12 Sep 1866
Birgitta died on April 1, 1909 in Holm, Överlännäs, Västernorrland, Sweden.