Katherine Knight is 55 years old (birthdate: October 24, 1955).
Katherine Mansfield was born on October 14, 1888 and died on January 9, 1923. Katherine Mansfield would have been 34 years old at the time of death or 123 years old today.
Katherine Helmond is 83 years old (birthdate: July 5, 1928).
Katherine Moennig is 33 years old (birthdate: December 29, 1977).
Katherine Mansfield died on January 9, 1923 at the age of 34.