Rummelhaf

My great grandmother, Carin Rummelhaf, emigrated from Christianna in 1882. She married Johan Olson and lived in Brooklyn NY. The marriage certificate states that her father's name was Albert Rummelhaf and her mother's name was Torkensen. His father's name was Ole Jensen and mother's name Anderson. I am still searching for the ships they came on and, also, anyone who is "attached' to the last names.