You have some real problems with that information.

The parish records for Øksnes, Nordland are available online for free searching by anyone and the birth/baptismal record for Harald Peter Gottfried (born 20 Nov 1879) does NOT list his father as Ole Jonsen.
http://www.arkivverket.no/URN:kb_read?idx_kildeid=10049&...

In the 1875 census for Øksnes, Nordland Harald's parents are not yet married but they both reside on the same farm -
http://digitalarkivet.uib.no/cgi-win/webcens.exe?slag=visbas...

The census lists that Harald's father is NOT originally from Øksnes but was from Ytterøy (probably Verran parish there) in Nørd-Trondelag, Norway. So that is the location where you should research to find the earlier family history of that particular "Grande" family. Since there was more than one Grande named farm in Norway - you can expect to find others also using that name that are not related at all.