She was the founder and chairman of the Danske Kvindeforeningers Valgretsforbund or DKV (the Danish Women's Society's Suffrage Union) in 1898–1907 and 1908–1909.

She married journalist and publisher Niels Jensen Nørlund (1854–1894) in 1881, but the couple divorced in 1892, and after the death of her former spouse, she was left in full responsibility for their only child, Agnes.

Louise Nørlund was early interested in politics, as her parents’ home was a center for radical democrats.

She was, however, impatient of DK:s hesitance to support the question of women suffrage, and in 1885, she left the DK, alongside among others Elisabet Ouchterlony and Matilde Bajer, to found the Kvindelig Fremskridtsforening (Female Progress Union).

In 1889, she also supported Line Luplau in the foundation of the national Kvindevalgretsforeningen (The Women Suffrage Union).