Home People Katherine MacGregor Katherine MacGregor shows Katherine MacGregor shows Katherine MacGregor TV Shows (6) Little House on the Prairie (1974) As Harriet Oleson, She was 49 years old Emergency! (1972) She was 47 years old All in the Family (1971) As Nurse, She was 46 years old Mannix (1967) She was 42 years old Ironside (1967) She was 42 years old Play of the Week (1959) As Maria, She was 34 years old
