Ole Christopher Fjerdingstad and Dorothea Marie Elisabeth (Johansen) had the 2 sons who came to Denmark.
Julius Christopher(related to me) and Jens Christian (related to you)
Carl Peter born 23/4-1863
Carl Christian your grandfather
Jens Chr. 30/12-1830 to 23/3-1894 and Juliane Kirstine( Lou) 31/12-1837 Ibsker Bornholm to 14/2-1904 had 5 children : Carl Peter- Julius Albert- Hans Vilhelm- Nora Kirstine and Marie Louise
I hope this gave you a little to work on :-) Hilsen Kirsten
PS: I found the book about your grandfather today and bougth it.