If one assumes an annotation strategy where Skogfoss and the predicative NP your parents' farm are marked as part of the same reference chain, then the descriptive content contributed by farm is added to the reference chain, which in turn makes it highly likely that the later expression that farm belongs to the same reference chain, as desired.
the descriptive content contributed by a predicative phrase -if assumed to be coreferential with its subjectcan be useful for identifying desired subsequent coreferences.