Don't know why the link doesn't work but it should reference: Berg, Bjarne. Haldis. 2nd Ed. Solf: Förf., 1994.
Haldin, Paro, Varg were family farms. My grandmother was to us (before marriage) Edith Amelia Paro, and changed to Wallin (from Wargelin) when arrived in USA. Much of the sources my mother had were poor photocopies of original material and I have depended on her transcription.