Hester Crane is Frasier Crane's mother, a research scientist. She dies sometime between November 22, 1984 and September 16, 1993. No cause of death is ever given, although it is hinted in Frasier to be breast cancer. In 1993, long after Hester had died Martin Crane reveals to Frasier that his mother had an affair with Dan Lawlor, a longtime friend of the family, but Martin pleaded with Frasier to not hate her for it. In the same series, Martin reminds his sons that while their mother had expensive and elegant tastes, she had enough class to not be a snob about it. Quotes