I have been compiling a list of operas that I have seen based on materials around the house, and I am surprised to see that I have so many old programs, including the Wozzeck and Der Rosenkavalier programs from 1962. It was, indeed, Marilyn Horne in Wozzeck.
I am up to 164 which can't possibly be all.
Yes, you were right. I could not possibly never have seen Lucia before. It says right here I saw Ruth Ann Swenson sing it in 1999 at the San Francisco Opera. This probably explains why I couldn't remember it. I still can't.