Hoping that you still subscribe to Ancestry.com.
I'm descended from Petrina Pederson, sister of your ancestor, Harriet. Petrina had many children; there are lots of her great-grandchildren and great-grandchildren in North Dakota and Oregon.
Would be fun to compare notes. For example, I think that Klokkenvenger is a variation on Klokkerengen and Engen is another variation - Harriet and Petrina's father often gave his name as Ole Pedersen Engen (listed on his marriage record from 1840).
Looking forward to hearing from you.
Sincerely, Elaine C. Portland, Oregon