In other words, are sentences like
We had a party at Jane's, who is my cousin.
or
He pressed his face up to Kate's, who flattened herself against the wall.
grammatically correct?
In other words, are sentences like
We had a party at Jane's, who is my cousin.
or
He pressed his face up to Kate's, who flattened herself against the wall.
grammatically correct?
I agree with Bill that, if the phrases were not elided, they would be ungrammatical. However, However, because these sentences do have elision, I would consider them correct, especially since the relative clause is additional information offset by a comma, and not important information vital to the meaning of the sentence. In addition, phrases like these are common, therefore I would argue acceptable.