They emigrated in 1873, here is the ship's list, they left from Bergen.
http://www.norwayheritage.com/p_list.asp?jo=1993Passenger list 1873 - bark Valkyrien
Captain Departure Arrival
Andreas Møller, Bergen, Apr. 25 1873, Quebec June 19, 1873
293 Anfind Jørgensen Sværen 52 m
294 Anna Sværen 52 f
295 Kirsti Sværen 19 f
296 Anders Sværen 16 m