Lovise Olsdatter - ship to America

Lovise Olsdatter, dau. of Ole Nilsen and Maren Skjollersdr., born 26 April, 1863 in Rostad, Skeberg, Norway, was granted permission Sept. 30, 1881 to leave her parish for American. Can someone tell me what port she may have left from and what ship she traveled on and possible what port she would have arrived at. She ended up in Crookston, Polk Co., MN. Thank you, Dusty