From the New York Times:
In his testimony, Mr. Auchincloss also described a lunch some 60 years later that he said had troubled him because she did not recognize him.
The lunch, at the Knickerbocker Club, took place in 2001, he said. “It was a great shock to me because she didn’t know me,” Mr. Auchincloss testified. “She knew she ought to know me.”
He said it was not the first time he had wondered about her. He said that in 1998, Mrs. Astor took part in a discussion about Edith Wharton at the Union Club and said she had known Wharton.
“This was astonishing to me,” Mr. Auchincloss said. “I’d written a biography of Edith Wharton. She had told me, which I knew to be true, that she’d never met Edith Wharton. She could have, but I happened to know she hadn’t.”