The correct answer to this question is Susan Thompson Buffet. Her and Warren Buffet remained married until her death in 2004, in which she died from cancer. They married in 1952 at the Dundee Presbyterian Church. During their marriage, they had three children together. Half of their marriage, they spent apart while Susan was working on her singing career.
During their marriage, Susan introduced her husband to waitress Astrid Menks. She moved into their home together, and they were often seen in public together. The three of them had a unique connection, and after Susan's death, she went on to marry Warren.
Susan Thompson Buffet was the first wife of Warren Buffet, and the two of them remained married from 1952 until her death in 2004. They were married at the Dundee Presbyterian Church in Omaha, and the couple had three children together. The two of them spent about half of their marriage apart since she moved to San Francisco to embark on a singing career.
In 1978, she introduced her husband to Astrid Menks, who moved in with Warren in their home in Omaha. The three of them had a special connection to each other and were often seen out together in public. They even signed their Christmas cards, Warren, Susan, and Astrid.