He proceeded to further education at London School of Economics and attained his Master of Law at Harvard. He worked for the United Nations in New York to develop international maritime law. Holmvang emigrated to Vancouver, British Columbia, Canada, in 1968 and worked as a legal advisor to the shipping industry until retirement.
He expanded his education at London School of Economics and received his Master of Law from Harvard. He worked for the United Nations in New York to create maritime law that is applicable globally. Holmvang relocated to Vancouver, British Columbia, Canada, in 1968 and served as a legal advisor to the shipping industry until he stopped working.