She was a member, with Gelett Burgess, of the San Francisco group "Les Jeunes", who published The Lark in the 1890s; Lundborg designed some of the covers.

[1][2] Lundborg spent the winter of 1899-1900 studying in Paris with James Abbott McNeill Whistler.

[3] She had previously studied in San Francisco with Arthur Mathews at the California School of Design.

[4][5] Her murals were in the Tea Room of the California Building at the Panama Pacific International Exposition.

She received commissions to paint murals in private homes in Portland, Chicago, New York and San Francisco.