[1] Arne Kildal was born in Kristiania (now Oslo, Norway).
degree from the University of Oslo before traveling to the United States to train as a librarian.
[3] In 1910 he returned to Norway to become chief librarian at Bergen Public Library.
In 1925, he took over as secretary general of the Norse Federation (Nordmanns-Forbundet), a cultural association for Norwegian-Americans, and served from 1925 to 1955, only interrupted by World War II from 1941 to 1945.
In 1917 he married Helga Gjerløw (1886–1979), daughter of Professor Waldemar Christopher Brøgger (1851–1940).