"b. Gothenburg, Sweden. Pupil of the Academy of Fine Art, Stockholm, and of Palmaroli, Paris. " 'The work of none of the artists of the present promises more for the future than does that of Hagborg.'" [P. 14.]
Catalogue of Works of Art in the Art Building of the Southern Exposition at Louisville, Ky. Prepared by Charles M. Kurtz. Published for the Art Committee by John P. Morton and Company, 1883.