Which nurse became Stephen Hawking's second wife in 1995?

Elaine Mason became Stephen Hawking's second wife in 1995.

Mason was one of the nurses who cared for Hawking after a severe bout of pneumonia in 1985 led to a tracheotomy and the loss of his natural speaking voice. Hawking required round-the-clock nursing, and Mason joined the team providing that care. She had previously been married to David Mason, a computer engineer who helped adapt Hawking's early speech-computer system.

Hawking's first marriage, to Jane Wilde, began in 1965 and produced three children. The couple separated in 1990 and divorced in 1995; Hawking married Elaine Mason in September of that year. Their marriage ended in divorce in 2006, after which Hawking renewed closer relationships with Jane, his children and grandchildren.

A common mix-up is to identify Jane Wilde as Hawking's second wife. She was his first wife and later wrote memoirs about their marriage, including the book that inspired the film The Theory of Everything.