Reginald Fessenden
Reginald Aubrey Fessenden (October 6, 1866 – July 22, 1932) was a Canadian-born inventor, who did a majority of his work in the United States and also claimed U.S. citizenship through his American-born father. During his life he received hundreds of patents in various fields, most notably ones related to radio and sonar.
Frederik Hegel
Frederik Vilhelm Hegel (11 May 1817 – 27 December 1887) was a Danish bookseller and publisher. He was born in Fredensborg. He started working for the bookstore Gyldendalske Boghandel at the age of fifteen, and took over the company in 1850. Under his leadership Gyldendal published many of the most important Norwegian writers, including Bjørnson, Ibsen, Kielland, Lie and Asbjørnsen. Hegel also published a number of dictionaries, periodicals and school books.