Hi Viktor.
They are my relatives too, on my mother's side, Jacobsson is born in Norrhassel, Attmar. I have my family tree in Geni. This is what I have come up to so far.
I also look for descendants of Olof Jacobsson in 1762 and Karin Persdotter in 1767. They lived in Värmland and moved from there north to Norrhassel, Attmar, Västernorrland.
Found information about Olof and then Karin. The couple Karin and Olof got eleven children. Värmland, among others in (Fryksände), which then became Östmark, Fäbacken, where the first child Lisa was born in 1788. Ulfsjötorp, Häckfallet. East Mark (S) AI: 4 (1794-1799) Figure 184 / page 178
farm worker Olof and housekeeper Karin Vigdes in Vittjärn 11 11 1787. Fryksände (S) EI: 1 (1750-1837) Picture 66 / page 125 Rad two (AID: v6482.b66.s125, NAD: SE / VA / 13131)
From the Häckfall in Värmland they moved north to Hassel in Attmar (y) Östmark (S) AI: 6 (1806-1811) Picture 177 / page 170 (AID: v9131.b177.s170, NAD: SE / VA / 13684)
(Household Attmar Attmar, Västernorrland (Y) AI: 3 (1803-1813) Picture 189 / page 164 Household Attmar (Y) AI: 4 (1814-1823) Picture 198 / page 189 (AID: v120962.b198.s189, NAD: SE / HLA / 1010009)
Olof died in Hassel 1817 04 30 when he became "Slaughtered to death of a tree" and was then 54 years old. Attmar (Y) C: 3 (1814-1846) Figure 99 / page 185 (AID: v120983.b99.s185, NAD: SE / HLA / 1010009)
Olof was married to Karin Persdotter on 1767 11 08 East Mark, Mellmark? (S) CI: 1 (1765-1818) Figure 7 / page 5 (AID: v9161.b7.s5, NAD: SE / VA / 13684)
Found in Fryksände House interrogation with mother Lisa and Far (S) AI: 11 (1778-1789) Figure 181 / page 173 (AID: v10903.b181.s173, NAD: SE / VA / 13131)
Lived in Värmland with husband Olof Hushörhör, Östmark (S) AI: 4 (1794-1799) Picture 184 / page 178 (AID: v9129.b184.s178, NAD: SE / VA / 13684)
Moved to Västernorrland, house interrogation: Attmar (Y) AI: 3 (1803-1813) Picture 189 / page 164 (AID: v120961.b189.s164a, NAD: SE / HLA / 1010009) Hassela
Karin / Chatarina Persdotter died May 20, 1841 of "stroke" lived in Hassela. She was then 73 years 6 months and 12 days. Death book Attmar (Y) C: 3 (1814-1846) Figure 109 / page 205 (AID: v120983.b109.s205, NAD: SE / HLA / 1010009).
Karin Persdotter's mother Lisa Pehrsdotter 1709 was first married to Per Persson and married Johan Johansson on 15 05 1749. Fryksände (S) CI: 2 (1733-1749) Picture 192 / page 371 (AID: v6470.b192.s371, NAD: SE / VA / 13131) At the bottom.
Fryksände house interrogation (S) AI: 5 (1750-1752) Picture 56 / page 101
Roland F