Olea Crøger the daughter of a pastor from Heddal, Norway, collected and published old folk tunes. She started this work before the more famous work of Jørgen Moe

Jørgen Moe

right|thumb|Norske Folkeeventyr Asbjørnsen and Moe Jørgen Engebretsen Moe was a Norwegian bishop and author...

 and Magnus Brostrup Landstad

Magnus Brostrup Landstad

Magnus Brostrup Landstad was a Norwegian minister, psalmist and poet who published the first collection of authentic Norwegian traditional ballads in 1853...

. Over her life, she collected and published volumes of material which contributed significantly to the spirit of Norwegian romantic nationalism

Norwegian romantic nationalism

Norwegian romantic nationalism was a movement in Norway between 1840 and 1867 in art, literature, and popular culture that emphasized the aesthetics of Norwegian nature and the uniqueness of the Norwegian national identity...

which grew in Norway in this period.