Guri Jacobsen (Engebretsdatter) - Marriage for Guri Engebretsdatter Haagensgaard

I am curious about how the name Jacobsen became attached to Guri's name.
She was married to Lars Eriksen Sando (born Tormorsgård) on 1 June 1855
<https://www.digitalarkivet.no/kb20051109020160&gt;
She died in 1917 in North Dakota, USA.
<https://www.findagrave.com/memorial/115999078/gure-ingebrits-sando&gt;
She was my wife's great-grandmother. I can provide some further information on request.